IPA: /æmˈbɪvələns/
KK: /æmˈbɪvələns/
A state of having mixed feelings or contradictory ideas about something or someone, where a person may feel both positive and negative emotions at the same time.
Her ambivalence about the job offer made it difficult for her to make a decision.
Ambivalence is formed from "ambi-" (meaning both) and "valent" (from Latin "valere", meaning to be strong or to be worth). The word describes the state of having mixed feelings or contradictory ideas about something, reflecting strength in both directions of feeling.
Think of having 'both' ('ambi-') strong feelings ('valere') about something, which helps you remember that ambivalence means having mixed emotions.