oh

1 oh /ˈoʊ/ interjection
1 oh
/ˈoʊ/
interjection
Britannica Dictionary definition of OH
1 
— used to express surprise, happiness, disappointment, or sadness
2 
— used in response to a physical sensation (such as pain)
3 
also O — used to address someone directly
4 
— used for emphasis when responding to a question or statement or when making a statement
5 
— used to show that something is understood
6 
— used during a pause in speaking
2 oh /ˈoʊ/ noun
plural ohs
2 oh
/ˈoʊ/
noun
plural ohs
Britannica Dictionary definition of OH
[count] US
— used to show the way the number 0 is often pronounced