We found one dictionary that defines the word tack onto:

Miscellaneous (1 matching dictionary)

1. tack onto: Idioms

▸ Words similar to tack onto ▸ Usage examples for tack onto ▸ Idioms related to tack onto ▸ Wikipedia articles (New!) ▸ Words that often appear near tack onto ▸ Rhymes of tack onto ▸ Invented words related to tack onto