Synonyms for Finalize:

n.

dream up, draw up, map out, fix, plan, think ahead, arrange, orchestrate, organize. conclude (noun)
clinch.
finalize (noun)
nail down, finalise, settle.

v.

complete (verb)
conclude, unify, culminate, consummate, close, finish, graduate, execute, fill, achieve, accomplish, integrate, complete, end, arrive, terminate, fulfill.
end (verb)
decease, stop, wrap up, cap, expire, exit, die, halt, pass away, pass on, checkmate, cease.
finish, complete action (verb)
clinch, wrap up, settle, consummate, conclude.

Other synonyms:

map out, dream up, think ahead. orchestrate. draw up, organize. arrange, plan. fix. Other relevant words:
finalise, clinch, nail down, fix, plan, settle, arrange, orchestrate, organize.