The idiom "under someone's spell" means to be completely captivated or influenced by someone or something. It is often used to describe a situation where someone is so enchanted or mesmerized by another person that they are unable to think or act independently.
For example, if someone is in love with another person, they might say "I am under his/her spell" to describe how they feel. Similarly, if someone is completely convinced by another person's argument or persuasion, they might say "I was under his/her spell" to explain why they agreed with them.
The phrase "under someone's spell" can also be used to describe situations where someone is being controlled or manipulated by another person. For instance, if someone is being coerced into doing something against their will, they might say "I was under his/her spell" to describe how they were unable to resist the other person's influence.
In summary, the idiom "under someone's spell" is used to describe a situation where someone is completely captivated or influenced by another person or thing. It can be used to describe positive or negative situations, and is often used to convey a sense of being powerless or helpless in the face of someone else's influence.
• After watching the movie, she was under the spell of the main actor and couldn't stop talking about him.
• The hypnotist put the audience under his spell and made them do things they never thought possible.
• The charismatic politician had the public under his spell and could convince them of anything.
• Despite all the warnings, the investors were under the spell of the charismatic CEO and invested all their money in his company.
• He was under her spell and couldn't resist her charm and beauty.
• My sister is under the spell of her favorite singer and she listens to her songs all day long.