tip

[1]	top , cap , crown , surmount
[2]	reward
[3]	tip off , advise , warn , caution , alert , forewarn , notify , let (someone) know , (Colloq) let (someone) in on
[4]	fee , bung
[5]	topple , tumble
[6]	lean , tilt , slant , angle
[7]	tiptoe , tippytoe
[8]	tap
[9]	tip off

[1]	gratuity , end , extremity , baksheesh , pourboire , peak , apex , douceur , lagniappe/lagnappe , summit , vertex , present , gift , cap , top , (Colloq) little something , pinnacle , tiptop , crown , head , terminal , ferrule/ferule , finial , nib/neb , point
[2]	tip-off , gratuity , pourboire , (inside) information , warning , baksheesh , bakshish , advice , suggestion , bakshis , backsheesh , clue , hint , pointer , forecast , prediction , (Colloq) (Brit) gen
[3]	lead , steer , confidential information , wind , hint
[4]	point , peak
[5]	peak , crown , crest , top , summit