echo vs cuckoo

echo and cuckoo both are nouns.

Word	Noun	Adjective	Verb	Adverb
echo	Yes	No	Yes	No
cuckoo	Yes	No	Yes	No

As verbs, cuckoo is a hyponym of echo; that is, cuckoo is a word with a more specific, narrower meaning than echo:

Other hyponyms of echo include recite, reecho, parrot, regurgitate, reproduce.

echo (noun)	cuckoo (noun)
an imitation or repetition	any of numerous European and North American birds having pointed wings and a long tail
the repetition of a sound resulting from reflection of the sound waves	a man who is a stupid incompetent fool
a reflected television or radio or radar beam
a close parallel of a feeling, idea, style, etc.
a reply that repeats what has just been said

echo (verb)	cuckoo (verb)
to say again or imitate	repeat monotonously, like a cuckoo repeats his call
ring or echo with sound
bring to mind