IPA: /ʌnˈsnæp/
KK: /ʌnˈsnæp/
To open or release something that is fastened with a snap, making it loose or free.
She decided to unsnap her jacket because it was too warm inside.
Past: unsnapped
Past Participle: unsnapped
Unsnap → It is formed from "un-" (meaning not or opposite of) and "snap" (from Old English "sneppan", meaning to catch or seize). The word "unsnap" means to reverse the action of snapping, or to release something that has been caught or fastened.
Think of 'un-' meaning not or the opposite, and 'snap' meaning to catch or seize. So, unsnap means to release or not catch something that was fastened.