Word Study
tack on
THESAURUS
tack on
add, adjoin, affix, agglutinate, annex, append, attach, burden, complicate, conjoin, decorate, encumber, glue on, hitch on, infix, join with, ornament, paste on, plus, postfix, prefix, put with, saddle with, slap on, subjoin, suffix, superadd, superpose, tag, tag on, unite withFor further exploring for "tack on" in Webster Dictionary Online