rime vs hoar

rime and hoar both are nouns.

Word	Noun	Adjective	Verb	Adverb
rime	Yes	No	Yes	No
hoar	Yes	Yes	No	No

As nouns, rime and hoar are synonyms defined as:

rime and hoar: ice crystals forming a white deposit (especially on objects outside)

Other synonyms of rime include frost, hoarfrost.

rime (noun)	hoar (noun)
correspondence in the sounds of two or more lines (especially final sounds)	ice crystals forming a white deposit (especially on objects outside)
ice crystals forming a white deposit (especially on objects outside)

rime (adjective)	hoar (adjective)
	showing characteristics of age, especially having grey or white hair

rime (verb)	hoar (verb)
compose rhymes
be similar in sound, especially with respect to the last syllable