| Answer | Crossword Clue |
|---|---|
| GUILD | Mutual-aid group |
| GUILDS | Associations for mutual aid |
| UNION | Organization of wage earners for mutual aid and protection and for dealing collectively with employers |
| LEAGUE | Mutual-assistance group |
| fraternity | The state or feeling of friendship and mutual support within a group |
| fraternities | The state or feeling of friendship and mutual support within a group |
| systems | A group of celestial objects connected by their mutual attractive forces, esp. moving in orbits about a center |
