Solicitation
Invitation
noun, する verb
I recommend this to you, so I'd like to invite you to try it. This is a solicitation or invitation.
かんゆう
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
大学生活の最初は、部活の勧誘をたくさん受けました。
I got a lot of invitations to participate in club activities at the beginning of the university year.