airmail /ˈɛəmeil/ I. n. ［c］航空邮件：I told her to send the letter by airmail.我叫她把那封信寄航空。A letter sent airmail will get to Europe quickly.寄往欧洲的航空信件会很快到达。‖II.vt.航空邮寄：I airmailed the letter to Miss Sifton. 我把信通过航空寄给了西夫顿小姐。