1 [C] ~ (to sth / to do sth) a spoken or written request to sb to do sth or to go somewhere:
to issue / extend an invitation * to accept / turn down / decline an invitation * an invitation to the party * I have an open invitation (= not restricted to a particular date) to visit my friend in Japan.
2 [U] the act of inviting sb or of being invited:
A concert was held at the invitation of the mayor. * Admission is by invitation only.
3 [C] a card or piece of paper that you use to invite sb to sth:
Have you ordered the wedding invitations yet?
4 [sing.] ~ to sb (to do sth)
