What does 以来 mean?
以来 is a Japanese noun meaning “since, henceforth” in English. It is written as 以来 in kanji, いらい in hiragana, and irai in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
１９８８年以来トムに会っていません。
I haven't seen Tom since 1988.