to fasten, join, or attach (usually fol. by to )

to affix stamps to a letter.

to put or add on; append

to affix a signature to a contract.

to impress (a seal or stamp).

to attach (blame, reproach, ridicule, etc.).

something that is joined or attached.

Grammar . a bound inflectional or derivational element, as a prefix, infix, or suffix, added to a base or stem to form a fresh stem or a word, as -ed added to want to form wanted, or im- added to possible to form impossible.

verb

detach , let go , loosen

verb

add , annex , append , bind , fasten , glue , hitch on , join , paste , put on , rivet , slap on , subjoin , tack , tack on , tag , tag on , clip , connect , couple , fix , moor , secure , assign , blame , impute , pin on , place , anchor , apply , attach , nail , seal , staple , unite