Nouns

(n)strapan elongated leather strip (or a strip of similar material) for binding things together or holding something in position
(n)straphanger consisting of a loop of leather suspended from the ceiling of a bus or train; passengers hold onto it
(n)strap, shoulder strapa band that goes over the shoulder and supports a garment or bag
(n)strapwhip consisting of a strip of leather used in flogging

Verbs

(v)straptie with a strap
(v)flog, welt, whip, lather, lash, slash, strap, trouncebeat severely with a whip or rod“The teacher often flogged the students”, “The children were severely trounced”
(v)strapsharpen with a strap“strap a razor”
(v)strapsecure (a sprained joint) with a strap