érvénytelenít |
1. érvénytelenít - to annul - to cancel - to frustrate - to infirm - to invalidate - to null - to nullify - to overrule - to rescind - to set aside - to vacate - to void 2. érvénytelenítés - annulment - cancellation - invalidation - recission 3. érvénytelenítő lebélyegzés - cancellation |