Rowlock has 2 different meanings across 1 category:
Noun
Noun
1
a holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing
2
a pivot attached to the gunwale (outrigger in a sport boat) of a boat that supports and guides an oar, and provides a fulcrum for rowing; an oarlock (mostly US).
Broader Terms (hypernyms)