my

¹ American  

[mahy] / maɪ /

pronoun

1. (a form of the possessive case of I used as an attributive adjective).

   My soup is cold.

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interjection

1. Also (used as an exclamation of mild surprise or dismay).

   My, what a big house this is! My-my, how old he looks!

my- ² American  

1. variant of myo- before some vowels.

   myalgia.

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my ¹ British  

/ maɪ /

determiner

1. of, belonging to, or associated with the speaker or writer (me)

   my own ideas

   do you mind my smoking?

2. used in various forms of address

   my lord

   my dear boy

3. used in various exclamations

   my goodness!

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interjection

1. an exclamation of surprise, awe, etc

   my, how you've grown!

MY ² British  

abbreviation

1. motor yacht

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my ³ British  

abbreviation

1. Malaysia

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my- ⁴ British  

combining form

1. a variant of myo-

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Grammar

See me.

Usage

What does my- mean? My- is a combining form used like a prefix meaning “muscle.” It is often used in medical terms, especially in anatomy.My- comes from the Greek mŷs, meaning “muscle” and “mouse.” Mouse? You read that right. Discover why at our entry for muscle!My- is a variant of myo-, which loses its -o- when combined with words or word elements beginning with vowels. Want to know more? Read our Words That Use myo- article.

Etymology

Origin of my

First recorded in 1125–75; Middle English mī, variant of mīn, Old English mīn; mine ¹

Example Sentences

Behold, the most beautiful big car I’ve ever laid eyes on, and I’ve laid my eyes on plenty.

From The Wall Street Journal • Apr. 4, 2026

"It's really difficult when you don't play. It's so tough. You don't get to show everyone how good you are. I'd never been more hungry to play football in my life."

From BBC • Apr. 4, 2026

“They were playing the contents of my heart,” she told me.

From The Wall Street Journal • Apr. 4, 2026

"In my eyes Neil loves to win 10-0 so I wanted to beat him 10-1 or give myself something to focus on so he didn't get back in it," said the 36-year-old Englishman.

From BBC • Apr. 3, 2026

“Hey,” he replies with a glance at my turquoise backpack.

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith