ぜひ

ぜひ
adverb
by all means, definitely
1. by all means, definitely
Expresses strong desire or recommendation. Used to strongly encourage someone or express earnest hope.
Please do come.
Strong invitation
You really should try eating this.
I definitely want to go to Japan.
Strong personal desire
Please do come over to hang out this weekend.
This book is really interesting, so you should definitely read it. It will change your life.

ぜひ is an adverb that adds strong emphasis to requests, invitations, and expressions of desire. It conveys sincerity and earnestness.

KANJI:
Can be written as 是非(ぜひ) but hiragana is more common.

COMMON PATTERNS:

  • ぜひ~てください: please do ~
  • ぜひ~たい: definitely want to ~
  • ぜひ()てください: please do come
  • ぜひ(ため)してみてください: you should definitely try it

USAGE:
Used to make invitations, requests, and recommendations more sincere and emphatic. Often appears in polite speech.

SIMILAR EXPRESSIONS:

  • どうぞ: please (offering)
  • どうか: please (requesting earnestly)
  • きっと: surely, definitely

NOTE:
ぜひ also has a noun meaning of 'right and wrong' (是非(ぜひ)()う - to question right and wrong), but the adverbial use is far more common.