Carpentry is a noun--a person, place, thing, or idea. In this case it is a thing, a trade, skill, or art.
part of speech
Adjective
What part of speech is thaw
The part of speech for oscillate is verb.
An adjective is a part of speech.
arm
Carpenters and wallboarders lift considerable weights as part of the job.
The part of speech for "answer" is a noun.
Arm & Hammer
part of speech
The part of speech for this particular word is a noun.
what part of speech is beneath
what part of speech is work
adverb
They had carpenters because they needed the carpenters
The part of speech for "explicit" is an adjective.
The part of speech for "twirl" is a verb.