Bear a grudge is an idiom which means to hold a resentment or bitterness towards someone for a long period of time. The two crossword solutions for this term are RESENT and SPITE, both of which are related to the feeling of bitterness and resentment. RESENT is a verb meaning to feel or show displeasure or indignation at something perceived as a wrong, insult, or injury. SPITE is a noun meaning a desire to hurt, annoy, or offend someone out of malice or revenge.