sea

[1]	ocean , deep blue sea , high seas , (Literary) (briny) deep , (bounding) main , Neptune's/Poseidon's kingdom/domain , (Nautical) blue water , Davy Jones's locker , (Colloq) briny , drink , pond (Atlantic Ocean)
[2]	swell , ocean , breaker , wave
[3]	plethora , quantity , abundance , surfeit , profusion , flood , multitude , spate , legion , mass , (Colloq) lot(s) , heap(s) , pile(s) , ton(s) , mountain(s) , load(s) , oodles , gobs , scads
[4]	(all) at sea , confused , disoriented , at sixes and sevens , bewildered , perplexed , baffled , mystified , lost , adrift