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