General prefixes for togetherness:
* Co-: This prefix means "with" or "jointly," and is often used for actions or relationships that involve two or more people or things. Examples: co-author, co-worker, co-operate.
* Syn-: This prefix means "together" or "with," and is often used for things that are combined or joined. Examples: synthesis, synonym, synchronize.
* Com-: This prefix can also mean "with" or "together," especially for actions or processes. Examples: combine, communicate, commemorate.
More specific prefixes for "together":
* Uni-: This prefix means "one" or "single," but can also imply togetherness when referring to a single entity formed from multiple parts. Example: unify (to bring together).
* Inter-: This prefix means "between" or "among," and suggests interaction or connection between multiple entities. Examples: interact, interrelate, international.
Beyond prefixes:
* Collective nouns: These words represent a group of individuals considered as a unit. Examples: team, family, audience.
The best prefix or word to use will depend on the specific context and the desired meaning.