As nouns the difference between dressmaker and tailoress
is that dressmaker is a person who makes dresses while tailoress is (dated) a female tailor.
dressmaker
English
Noun
(
en noun)
A person who makes dresses.
Usage notes
* This term may apply to a person of either gender, but is usually expected to be female.
Coordinate terms
* seamstress
* tailor
tailoress
English
Noun
(es)
(dated) a female tailor