(idiomatic) An emphatic form of believe me: you (the subject) had better believe me (the speaker).

A deep, hearty laugh

To laugh a belly laugh.

(intransitive, chiefly UK) To appear implausible or unbelievable.

(idiomatic, especially regarding acceptance of an invitation) With eager anticipation and enthusiasm.

Alternative spelling of true-believer syndrome

A phenomenon in which witnesses to a staged event continue to believe in its authenticity even after it has been debunked.

Any of several plants of the genus Codonopsis.

The woman who is the most beautiful or attractive at a dance or similar function

(transitive) To ascribe existence to. / (transitive) To believe that (something) is right or desirable. / (transitive) To have confidence in the ability or power of.