tow|er «TOW uhr», noun, verb.
1. a high structure. A tower may stand alone or form part of a church, castle, or other building. Some towers are forts or prisons, others are used for storing water, watching for fires, or controlling the landing and taking off of aircraft. SYNONYM(S): spire, steeple, turret.
2. a means of defense or protection. SYNONYM(S): citadel, fortress, stronghold.
3. Figurative. a person or thing that is like a tower in some way: »

a tower of strength.

to rise or stand high up: »

The boy towered over his baby brother.

[partly Old English torr < Latin turris; partly Middle English ture, or tour < Old French tur, and tour < Latin]
tow´er|like´, adjective.

Useful english dictionary. 2012.