Bollard has 2 different meanings across 1 category:
Noun
Noun
1
a strong post (as on a wharf or quay or ship for attaching mooring lines)
"the road was closed to vehicular traffic with bollards"
2
A strong vertical post of timber or iron, fixed to the ground and/or on the deck of a ship, to which the ship's mooring lines etc are secured.
Broader Terms (hypernyms)
Narrower Terms (hyponyms)