annulet vs square and rabbet

annulet and square and rabbet both are nouns.

Word	Noun	Adjective	Verb	Adverb
annulet	Yes	No	No	No
square and rabbet	Yes	No	No	No

As nouns, annulet and square and rabbet are synonyms defined as:

annulet and square and rabbet: molding in the form of a ring; at top of a column

Other synonyms of annulet include bandelet, bandelette, bandlet.

annulet (noun)	square and rabbet (noun)
molding in the form of a ring; at top of a column	molding in the form of a ring; at top of a column
(heraldry) a charge in the shape of a small ring