A woman's face showing solidarity: a steady, resolute gaze and a composed, firm set.

Solidarity

Facial expression generated with AI

Felt unity with others who share a cause.

Solidarity is felt unity with others who share a cause. The chest broadens and the shoulders square. You stand with others rather than alone, held by a larger we. Shared purpose becomes a source of strength.

Standing together changes what is possible

Solidarity is the experience of being part of a we that is larger than your I. It is different from belonging. Belonging is intimate. Solidarity is functional. The march. The strike. The shared cause. Solidarity gives individuals access to powers they do not have alone. It also gives life meaning in a way that pure individualism cannot. Find at least one cause, community, or movement to which you belong in this way, even loosely. The union. The recovery group. The local campaign. Solidarity needs nothing from you except presence and contribution. The return is enormous. You become part of something that outlives you.

"Not until we are lost do we begin to understand ourselves."

— Henry David Thoreau

Where it lives in the body
Chest
Tightness or warmth
Moderate
Arms
Subtle activation
Quiet
Shoulders
Slight rise
Quiet

Solidarity has a distinctive body signature of collective unity. The chest broadens with the felt sense of being part of larger group. The shoulders square. The voice often carries particular firm warm quality. The face shows determined warmth. The body holds itself in a way that suggests standing with others rather than standing alone; even when physically alone, there is a felt sense of being held by the collective. The state can be sustained over years when underlying conditions support it, becoming part of how identity is held. Sustained solidarity often produces particular kinds of resilience that isolation does not provide.

Solidarity has been studied within sociological and psychological research on collective identity, social movements, and group functioning. Durkheim's foundational work on social cohesion distinguished mechanical solidarity (based on shared characteristics) from organic solidarity (based on interdependence in complex societies) (Durkheim, 1893/1984). Subsequent research has shown that felt solidarity contributes to multiple positive outcomes including psychological well-being, collective efficacy, and capacity for sustained engagement with difficult challenges. Research on social identity has shown that strong group identification often produces measurable resilience effects.

See also in classical art
A crowd of workers strides forward together across an open square.
The Fourth Estate
Giuseppe Pellizza da Volpedo, 1901
Why solidarity shows up

Solidarity arises through specific conditions involving shared cause or condition. Common patterns include:

Shared conditions and experiences
Solidarity often develops among people who share conditions: workers in similar situations, members of groups facing similar challenges, people who have shared particular experiences. The shared condition provides the basis for felt unity. Many of the most significant solidarities have developed through recognising shared conditions that had previously been experienced as individual.
Shared cause or commitment
Solidarity develops around shared causes, movements, and commitments. People who care about the same things, who are working for the same outcomes, often develop solidarity through that shared engagement. The solidarity supports sustained engagement with difficult work in ways that individual commitment often cannot sustain.
Witnessed injustice or oppression
Solidarity often develops when injustice or oppression is recognised, both within affected groups and across boundaries with those who recognise the injustice. This kind of solidarity has been central to many social movements historically and continues to be important. The recognition that what is happening to others matters supports broader solidarity.
Sustained engagement that builds collective identity
Solidarity often develops through sustained engagement that builds collective identity. Movements, communities, organisations that engage in shared work over time often develop strong solidarity that supports continued engagement. The collective identity that develops becomes part of how members hold themselves.
What solidarity is often confused with
Friendship
Friendship is the relational category involving specific individual relationships. Solidarity is broader felt unity with others, including those you do not know personally. A person can have solidarity with others they have never met (workers, members of groups, people sharing conditions) that would not constitute friendship. The two can coexist within specific relationships but solidarity extends beyond individual friendships.
Agreement
Agreement is intellectual concurrence on positions. Solidarity is the felt unity that often produces commitments beyond positions. A person can agree without solidarity (sharing views without felt unity) or have solidarity despite some disagreement (felt unity with shared cause despite differences on specifics). The felt dimension distinguishes solidarity from mere agreement.
Being on the same side
Being on the same side is too generic. Solidarity has the specific felt unity quality. A person can be technically on the same side without solidarity (sharing position without felt unity, sometimes for tactical reasons). Solidarity involves the additional felt engagement with shared cause.
Loyalty
Loyalty involves sustained commitment to specific others or groups. Solidarity is the broader felt unity that often produces loyalty. A person can have solidarity without specific loyalty (felt unity with cause that does not require specific individual loyalties). Loyalty often develops from sustained solidarity but the underlying experiences are distinct.
Performed solidarity
Some patterns labelled as solidarity are actually performed for social or political effect without underlying felt unity. The distinction matters because performed solidarity often does not sustain through difficulty; genuine solidarity tends to be more robust. Working with what you actually feel, including limits to your solidarity, often produces more sustainable engagement than performance.
What helps

Solidarity is one of the more sustainable positive social experiences when conditions support it. The following help.

Build relationships with others engaged in similar concerns

Solidarity typically develops through actual engagement with others who share your concerns. Building relationships with such others, including through formal organisations, informal communities, or shared work, supports felt solidarity. Isolation, even when caring about similar things, often produces less solidarity than active engagement.

Engage in shared work

Working alongside others on shared concerns produces solidarity in ways that pure intellectual agreement does not. Movements, mutual aid, community engagement, organisational work all build solidarity through the shared engagement itself. The work matters; solidarity that is not grounded in shared action often does not sustain.

Distinguish your solidarities

Different solidarities may have different reach and depth. Recognising what specifically your solidarities are, what they require of you, what they connect you with, supports clearer engagement than vague gestures toward broad solidarity. The specificity matters; broad performances often produce less than focused engagement.

Hold solidarity through difficulty

Solidarity is most tested when shared work is difficult, when others fail, when costs become real. Maintaining solidarity through these tests typically produces deeper unity than easier times can produce. People who have worked through difficulty together often describe the resulting solidarity as among the most meaningful aspects of their lives.

If solidarity has been difficult to access

Sustained isolation, even within communities, may signal patterns worth attending to: social anxiety, depression, particular attachment patterns, or actual lack of communities that share your concerns. The capacity for solidarity is widely shared but requires both internal capacity and external conditions. When felt solidarity has been absent from your life, both finding actual communities and addressing patterns that block engagement often help.

"Durkheim's foundational work on social cohesion distinguished mechanical solidarity (based on shared characteristics) from organic solidarity (based on interdependence). The concept has been central to sociological understanding of social functioning."

— A summary of Durkheim's analysis of solidarity
Common questions
What is solidarity?

Solidarity is felt unity with others who share a cause. The body has settled into the felt sense of being part of a larger we, of standing with others rather than alone. The chest broadens. The shoulders square. There is a quality of being held by collective identification, of finding strength in shared purpose, of recognising that what concerns you concerns others who matter to you. Solidarity specifically refers to the felt unity with others around shared cause or condition, often combined with active commitment to mutual support. The felt unity quality is essential. Solidarity is not just agreeing with others; it is feeling with them as part of a shared we.

Where do people feel solidarity in the body?

Solidarity has a distinctive signature of collective unity. The chest broadens with the felt sense of being part of larger group. The shoulders square. The voice often carries particular firm warm quality. The face shows determined warmth. The body holds itself in a way that suggests standing with others rather than standing alone; even when physically alone, there is a felt sense of being held by the collective. The state can be sustained over years when underlying conditions support it, becoming part of how identity is held. Sustained solidarity often produces particular kinds of resilience that isolation does not provide.

How is solidarity different from friendship?

Friendship is the relational category involving specific individual relationships. Solidarity is broader felt unity with others, including those you do not know personally. A person can have solidarity with others they have never met (workers in similar conditions, members of groups facing similar challenges, people sharing experiences) that would not constitute friendship. The two can coexist within specific relationships but solidarity extends beyond individual friendships. Durkheim's foundational sociological work on solidarity distinguished its different forms; the concept has been central to understanding how groups, movements, and societies function.

Why is solidarity important?

Research on social identity and group functioning has shown that felt solidarity contributes to multiple positive outcomes including psychological well-being, collective efficacy, and capacity for sustained engagement with difficult challenges. Strong group identification often produces measurable resilience effects. Historically, solidarity has been central to social movements, mutual aid, and the achievement of collective goods that individual effort could not produce. Personally, solidarity often counters isolation in ways that individual relationships alone cannot, providing felt connection with broader collective. The cultural emphasis on individual achievement has sometimes obscured the importance of solidarity for both individual and collective functioning.

How do you build solidarity?

Several practices support solidarity development. Building relationships with others engaged in similar concerns through formal organisations, informal communities, or shared work, supports felt solidarity. Engaging in shared work produces solidarity in ways that pure intellectual agreement does not; movements, mutual aid, community engagement, organisational work all build solidarity through the shared engagement itself. Distinguishing your solidarities by recognising what specifically they are, what they require, what they connect you with, supports clearer engagement than vague gestures. Holding solidarity through difficulty typically produces deeper unity than easier times can produce. When solidarity has been difficult to access, sustained isolation may signal patterns worth attending to including social anxiety or actual lack of communities; both finding actual communities and addressing blocking patterns often help.

Sources
  1. Durkheim, E. (1984). The Division of Labor in Society (W. D. Halls, Trans.). The Free Press. (Original work published 1893)
Emotions nearby

Solidarity sits in the social family as one of its most collectively engaged forms. It overlaps with belonging when the focus is on inclusion in groups, with loyalty when commitment to specific others is emphasised, with brotherhood or sisterhood as related cultural concepts, with what social movement research has identified as one of the crucial supports for sustained collective action, and with what Durkheim's sociology identified as one of the foundational concepts for understanding social functioning.