Synonyms and related words :
add, adjoin, affix, agglutinate, annex, 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, tack on, tag, tag on, take on, unite with,