banister

Short definition from Wiktionary

Noun

1. 1
   The handrail on the side of a staircase.
2. 2
   One of the vertical supports of a handrail; a baluster.

Verb

1. 1
   To construct a banister.
2. 2
   To act as a banister.

Proper noun

1. 1
   A surname originating as an occupation for a maker of baskets.
2. 2
   An unincorporated community and district in Pittsylvania County, Virginia, United States.