strike / touch

bump into / strike / run into / hit

strike / break on <waves> / run up against / hit against / hit on / beat / run into / beat against / hit / strike against / strike on

strike / run into / hit

(of one's behaviour toward another) cold / (of one's behaviour toward another) chilly / (of one's behaviour toward another) harsh / (of one's behaviour toward another) unfriendly / (of one's behaviour toward another) very cold / (of one's behaviour toward another) stone cold / (of one's behaviour toward another) icy cold / (of one's behaviour toward another) frigid / (of one's behaviour toward another) frosty

decompose / decay

decompose / <<milk>> turn sour / decay / spoil / rot / go bad

go rotten / spoil / rot / putrefy

decay / rot / fall into decay

erode / decompose / deterioration / eat away / rust / rot / corrode / deteriorate / decomposing