Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
write-off is a noun meaning "(accounting) reduction in the book value of an asset". It carries 2 recorded senses.
(accounting) reduction in the book value of an asset
accounting
the act of cancelling from an account a bad debt or a worthless asset
Definitions, synonyms and semantic relations for write-off come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.