autograph

v [Tn] write one's name on or in (sth) 在（某物）上签名; 签名於（某物）: an autographed copy 签过名的一份.

authority, authorization, authorization, -isation, authorize, authorize, authorise, authorized, authorship, autism, autistic, auto, auto-suggestion, autobahn, autobiographic, autobiography, autocracy, autocrat, autocratic, autocratically, autocross, Autocue, automat, automate, automatic, automatic pilot, automatic transmission, automatically, automation, automaton, automobile, automotive, autonomous, autonomously, autonomy, autopsy, autostrada, autumn, autumnal, auxiliary, AV, avail,