supply vs append

supply is a noun but append is not a noun.

Word	Noun	Adjective	Verb	Adverb
supply	Yes	No	Yes	No
append	No	No	Yes	No

As verbs, supply and append are synonyms defined as:

Other synonyms of supply include add.

supply (noun)	append (noun)
the activity of supplying or providing something
offering goods and services for sale
an amount of something available for use

supply (verb)	append (verb)
state or say further	state or say further
give what is desired or needed, especially support, food or sustenance	fix to; attach
give something useful or necessary to	add to the very end
circulate or distribute or equip with