(written) contract; agreement; contract document

contract, agreement

to enter into a contract

autograph event

(trigonometry) sine

a signature; a autograph / a sign / signal

to sign

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend