rowlock vs oarlock

rowlock and oarlock both are nouns.

Word	Noun	Adjective	Verb	Adverb
rowlock	Yes	No	No	No
oarlock	Yes	No	No	No

As nouns, rowlock and oarlock are synonyms defined as:

rowlock and oarlock: a holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing

Other synonyms of rowlock include peg, pin, thole, tholepin.

rowlock (noun)	oarlock (noun)
a holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing	a holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing