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HYPHEN
WORDNET DICTIONARY
THESAURUS

RELATED WORDS : bob under buckle under come and go contract under seal down under fall under get under one's skin go go a long way go about go across go after go against go ahead go all out go along go along with go around go around in circles go astray go at go away go back go back on go back over go bad go ballistic go before go between go beyond go board go by go deep go down go down on go dutch go far go fish go for go for broke go forth go forward go game go getter go go go home go in go in for go in with go into go off go off at half-cock go off half cocked go off half-cocked go on go on and on go one better go out go over go over big go overboard go past go places go slow go steady go straight go the limit go through go through the motions go to go to bed go to extremes go to great lengths go to it go to pieces go to pot go to sleep go to the dogs go to town go to war go together go too far go up go up in smoke go with go without saying go wrong going under have a go have a go at it hide and go seek hot under the collar knuckle under labor under let go let go of let it go letting go lying under oath no go on the go pheasant under glass put under sentry go snow under sweep under the rug touch and go under under arms under attack under consideration under construction under control under fire under it under no circumstances under that under the circumstances under the impression under the influence under the sun under the weather under way under wraps water under the bridge

WORDNET DICTIONARY

Verb go under has 3 senses

• go under(v = verb.motion) go down, settle, sink - go under,; "The raft sank and its occupants drowned"
is one way to come down, descend, fall, go down
Sample sentences:
Something ----s
Somebody ----s

• go under(v = verb.motion) go down, set - disappear beyond the horizon; "the sun sets early these days"
is one way to come down, descend, fall, go down
Sample sentence:
The moon will soon go under

• go under(v = verb.communication) go by - be called; go by a certain name; "She goes by her maiden name again"
Sample sentences:
Somebody ----s something
Something ----s something

THESAURUS

go under

be ruined, become insolvent, bite the dust, bow, break, bust, collapse, crash, fail, fall, fold, fold up, founder, go bankrupt, go broke, go down, go downhill, go into receivership, go to glory, go to hell, go to perdition, go to pot, go to ruin, go to shivers, go to smash, go to smithereens, go up, go wrong, have enough, lick the dust, lose, lose out, lose the day, say uncle, shut down, sink, slip, submerge, submerse, submit, succumb, surrender, take the count, tumble

For further exploring for "go under" in Webster Dictionary Online