thumbtack thumbstring • thumby · · · Info · Definitions · Synonyms · Characters · · thumbtack · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a tack for attaching papers to a bulletin board or drawing board. Synonyms: drawing pin, pushpin. · · Noun Definition 1 (verb) fasten with thumbtacks. Example: "The teacher thumbtacked the notice on the bulletin board." · · Verb Definition 1 Synonyms · · · drawing pin · · Synonym 1 pushpin · · Synonym 2 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 h latin small letter h U+0068 k latin small letter k U+006B m latin small letter m U+006D t latin small letter t U+0074 u latin small letter u U+0075