1. the one and only
Meaning: a special, unique, or famous person
Example:
“Please welcome the one and only Sarah!”
Natural situation:
You can use this when introducing someone in a fun, warm, or slightly dramatic way.
2. number one
Meaning: the most important person or thing
Example:
“My family is number one to me.”
Natural situation:
Use this when talking about priorities.
3. one in a million
Meaning: very special, rare, and valuable
Example:
“My best friend is one in a million. She always shows up when I need her.”
Natural situation:
This is great for emotional or heartfelt conversations.
4. one and done
Meaning: doing something once and not wanting to do it again
Example:
“I tried skydiving once. I’m one and done.”
Natural situation:
Often used when talking about having only one child, but it can also apply to experiences, classes, trips, or challenges.
5. one way or another
Meaning: somehow, no matter what it takes
Example:
“One way or another, I’ll make sure we get there on time.”
Natural situation:
Use this when you want to sound determined and reassuring.
Role play script from the conversation
Situation: Two friends are talking at a party.
A: So, how have you been?
B: Good, thanks. I didn’t know you were coming.
A: Oh, yeah. I thought I might not make it, but I wanted to make sure I got here one way or another.
B: Well, I’m so glad you did. You’re one in a million.
A: Aw, thanks. Well, friends are number one to me.
B: Well, later, I hear the one and only Megan is coming.
A: Yeah, that’s so exciting. Is she having another baby?
B: She says she’s one and done, but who knows?
A: Oh my gosh, this song!
B: My favorite one-hit wonder ever.
A: It’s a great one.
Paragraph using all 5 expressions
My best friend is truly one in a million. Whenever I’m going through a hard time, she reminds me that friendship is number one to her. Last weekend, she was exhausted, but she still came to my party one way or another because she knew it mattered to me. When she walked in, I jokingly introduced her as the one and only Emily. Later, we talked about a stressful event we had both attended, and she laughed and said, “I’m definitely one and done with that.”