beforehand
🇺🇸
/bɪˈfɔːrhænd/
🇬🇧
/bɪˈfɔːhænd/
adverb
R
at an earlier time; before something happens
Please let me know beforehand if you cannot come to the meeting.
会議に来られない場合は、事前に教えてください。
translation
事前に；あらかじめ