write vs overwrite

write and overwrite both are verbs.

Word	Noun	Adjective	Verb	Adverb
write	No	No	Yes	No
overwrite	No	No	Yes	No

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

write: record data on a computer
overwrite: write new data on top of existing data and thus erase the previously existing data

write (verb)	overwrite (verb)
communicate or express by writing	write new data on top of existing data and thus erase the previously existing data
record data on a computer
contact in writing
produce a literary work
mark or trace words or symbols on a surface
write or name the letters that comprise the conventionally accepted form of (a word or part of a word)
write music
create code, write a computer program