宜しく

please; thank you in advance, give my regards to; say hello to

→ 宜しい
宜し all right, acceptable, good + く Adverbial form
adjective Rare #41,097
please; thank you in advance Often used in the set phrase 宜しくお願いします. This kanji spelling is less common than よろしく.
JA: これから宜しくお願いします。
EN: I look forward to working with you.
give my regards to; say hello to Used when asking someone to pass along a greeting.
JA: お母さんに宜しくお伝えください。
EN: Please give my regards to your mother.
Forms of 宜しい

宜しくお願い致します。

Thank you in advance.

恐れ入りますが、宜しくお願い致します。

Thank you in advance for your kind assistance.

— ウィキッド 永遠の約束 (2025)

どうぞ宜しくお願い申し上げます。

I sincerely look forward to working with you.

易先生に宜しくおっしゃって下さい

Please give my regards to Mr. Yi.

— ラスト、コーション (2007)