(n.) A wave, or two or three successive waves, of great height and violence, at flood tide moving up an estuary or river; -- commonly called the bore. See Bore.

bag balloon be poised belly belly out bilge bore bouge break breakers bug bulge chop choppiness chopping sea comb comber crash dash dilate dirty water distend eagre ebb and flow goggle gravity wave ground swell heave heavy sea heavy swell lift lop peak pooch pop popple pouch pout riffle ripple rise rise and fall roll roller rough water round out scend sea send smash surf surge swell swell out tidal bore tidal wave tide wave toss trough tsunami undulate undulation water wave wave wavelet white horses whitecaps