同

all present; all concerned; all of us

cooperation; association; collaboration; joint

combination; incorporation; union; amalgamation

the same; the said; ibid.

of the same age

same

identity; sameness; similarity

coworker; colleague; associate

fellow; companion; comrade

enclosure (e.g. in a letter)

living together

same mind; comrade; kindred soul

sympathy; compassion; sympathize; pity; feel for

agreement; consent; same meaning; same opinion; approval

agreement; same opinion; same feeling; sympathy; concurrence

simultaneous(ly); concurrent; same time; synchronous

the same rank; equality; apposition

identical; equal to; same (kind); like

alliance; union; league

equality; equal; same rights; same rank

the same grade; same class

sympathy; agree with; alignment; tuning

confusion; mixing; merger