B1
to send a letter or package by mail
Dictionary examples:
I mailed my homework to my teacher, but my dog ate the mailbox! (0.0)
She mailed her boss a resignation letter, but accidentally used invisible ink. (0.0)
She mailed a love letter to herself and pretended it was from her crush. (0.0)
Did you remember to mail me that letter / to mail that letter to me? (28.6)
I have to get to the post office and mail (off) this package. (31.9)
Please sign the form and mail it to the address below. (37.2)