tattoo vs bugle call

tattoo and bugle call both are nouns.

Word	Noun	Adjective	Verb	Adverb
tattoo	Yes	No	Yes	No
bugle call	Yes	No	No	No

As nouns, bugle call is a hypernym of tattoo; that is, bugle call is a word with a broader meaning than tattoo:

tattoo: a drumbeat or bugle call that signals the military to return to their quarters
bugle call: a signal broadcast by the sound of a bugle

Other hypernyms of tattoo include drumbeat.

tattoo (noun)	bugle call (noun)
the practice of making a design on the skin by pricking and staining	a signal broadcast by the sound of a bugle
a design on the skin made by tattooing
a drumbeat or bugle call that signals the military to return to their quarters

tattoo (verb)	bugle call (verb)
stain (skin) with indelible color