sign

[1]	autograph , put one's signature on/to , inscribe , countersign , endorse , witness , put/set one's hand to , mark , sign on the dotted line , (Colloq) (US) put one's John Hancock on/to
[2]	sign away , forgo , relinquish , give up , abandon , abandon/quit claim to , waive , release , surrender , dispose of , sacrifice , get rid of
[3]	sign off , close down , discontinue (broadcasting , writing a letter , etc)
[4]	sign on/up , enrol , enlist , sign up (for) , register , volunteer , join (up) , contractenrol , enlist , hire , employ , put under contract , retain , engage , take on , (Colloq) take on board , bring aboard
[5]	sign over , assign , consign , transfer , make over , deliver , give , donate , present , dispose of , turn over
[6]	subscribe
[7]	ratify
[8]	contract , sign on , sign up
[9]	signal , signalize , signalise
[10]	bless

[1]	mark , token , symbol , indication , mark , signal , indicator , notice
[2]	movement , gesture , motion , signal , cue , gesticulation
[3]	trace , signal , signaling , indication , evidence , mark , clue , hint , suggestion , vestige
[4]	device , signboard , mark , symbol , representation , emblem , trade mark , badge , brand , stamp , seal , ideogram , ideograph , lexigram , phonogram , grapheme , hieroglyph , cartouche , rebus , logo(type) , colophon , ensign , standard , banner , flag , monogram , initials , cipher/cypher
[5]	signboard , sign of the zodiac , star sign , advertisement , placard , mansion , house , poster , (US) broadside , planetary house , shingle , notice , announcement
[6]	omen , augury , warning , forewarning , foreboding , portent , indication , writing on the wall , prophecy , prognostication , foreshadowing
[7]	polarity
[8]	augury , foretoken , preindication

adj.

[1]	gestural , signed , sign-language