eat
A three letter word for consumed is ate.
sip
now ?
A three letter synonym for a verse is ode.
A three letter synonym for the exclamation 'gosh' is gee.
nee
A three letter synonym for 'present' is now.
Gob is a synonym for a seaman.
There is no synonym for 3.
The opposite of work is play, or possibly rest.
The word is "arc", although that is not the only possible meaning of that work. For example, in graph theory, an arc is a synonym for an edge of a graph.
Jim Dine had fathered 3 sons by 1967.