tunic vs gymslip

tunic and gymslip both are nouns.

Word	Noun	Adjective	Verb	Adverb
tunic	Yes	No	No	No
gymslip	Yes	No	No	No

As nouns, gymslip is a hyponym of tunic; that is, gymslip is a word with a more specific, narrower meaning than tunic:

tunic: any of a variety of loose fitting cloaks extending to the hips or knees
gymslip: a sleeveless tunic worn by English girls as part of a school uniform

Other hyponyms of tunic include chiton, kameez, kirtle, surcoat, tabard.

tunic (noun)	gymslip (noun)
any of a variety of loose fitting cloaks extending to the hips or knees	a sleeveless tunic worn by English girls as part of a school uniform
an enveloping or covering membrane or layer of body tissue