alter vs interpolate

alter and interpolate both are verbs.

Word	Noun	Adjective	Verb	Adverb
alter	No	No	Yes	No
interpolate	No	No	Yes	No

As verbs, alter and interpolate are synonyms defined as:

alter and interpolate: insert words into texts, often falsifying it thereby

Other synonyms of alter include falsify.

alter (verb)	interpolate (verb)
remove the ovaries of	insert words into texts, often falsifying it thereby
become different in some particular way, without permanently losing one's or its former characteristics or essence	estimate the value of something based on known values
cause to change; make different; cause a transformation
insert words into texts, often falsifying it thereby
make an alteration to