1. bow¹ verb, to lower (one's head) or bend (one's knee or body) as a sign of respect, greeting, assent, or shame
2. bow² noun, a weapon for shooting arrows, consisting of an arch of flexible wood, plastic, metal, etc bent by a string (bowstring) fastened at each end. See also crossbow
3. bow³ noun, chiefly nautical a) the forward end or part of a vessel b) (as modifier)
4. (and 5 more)

By Defined by Harper Collins 

Collins English Electronic Dictionary - Digital Edition: 2008 © HarperCollins Publishers 2008

1. bow to the inevitable
2. the manager bowed us to our car
3. rainbow
4. oxbow
5. saddlebow

Synonyms

bend, bob, nod, inclination, salaam, obeisance, kowtow, genuflect, bend, bob