cling vs cleave

cling is a noun but cleave is not a noun.

Word	Noun	Adjective	Verb	Adverb
cling	Yes	No	Yes	No
cleave	No	No	Yes	No

As verbs, cling and cleave are synonyms defined as:

cling and cleave: come or be in close contact with; stick or hold together and resist separation

Other synonyms of cling include adhere, cohere, stick.

cling (noun)	cleave (noun)
fruit (especially peach) whose flesh adheres strongly to the pit

cling (verb)	cleave (verb)
come or be in close contact with; stick or hold together and resist separation	separate or cut with a tool, such as a sharp instrument
hold on tightly or tenaciously	make by cutting into
to remain emotionally or intellectually attached	come or be in close contact with; stick or hold together and resist separation