1af·fix 
/əˈfɪks/ verb
af·fix·es; af·fixed; af·fix·ing /əˈfɪks/ verb [+ obj] formal : to attach (something) to something else
▪ Please affix a stamp to [=put a stamp on] this letter. ▪ She affixed her signature to the document. [=she signed the document]
▪ Please affix a stamp to [=put a stamp on] this letter. ▪ She affixed her signature to the document. [=she signed the document]
