oarlock vs thole

oarlock and thole both are nouns.

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

As nouns, oarlock and thole are synonyms defined as:

oarlock and thole: 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 oarlock include peg, pin, rowlock, tholepin.

oarlock (noun)	thole (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