dove vs emblem

dove and emblem both are nouns.

Word	Noun	Adjective	Verb	Adverb
dove	Yes	No	No	No
emblem	Yes	No	No	No

As nouns, emblem is a hypernym of dove; that is, emblem is a word with a broader meaning than dove:

Other hypernyms of dove include allegory.

dove (noun)	emblem (noun)
any of numerous small pigeons	special design or visual object representing a quality, type, group, etc.
an emblem of peace	a visible symbol representing an abstract idea
flesh of a pigeon suitable for roasting or braising; flesh of a dove (young squab) may be broiled
someone who prefers negotiations to armed conflict in the conduct of foreign relations