in·val·i·date 
(ĭn-vălĭ-dāt′)
(ĭn-vălĭ-dāt′)tr.v. in·val·i·dat·ed, in·val·i·dat·ing, in·val·i·dates
To make invalid; nullify.
in·val′i·dation n.
in·vali·da′tor n.
- Eurodollar
- West Germanic
- West Germany
- West Highland white terrier
- Westie
- West Indian
- West Indies
- West Indies Federation
- westing
- Westinghouse
- Westminster
- Westmoreland
- West Nile virus
- west-northwest
- Weston
- West Pakistan
- Westphalia
- Westphalian
- West Point
- West Prussia
- West Saxon
- West Slavic
- west-southwest
- West Virginia
- West Virginian