teacher

noun

teach·​er ˈtē-chər 

1

: one that teaches

especially : one whose occupation is to instruct

2

: a Latter-day Saint ranking above a deacon in the Aaronic priesthood

Synonyms of teacher

• educator
• instructor

Examples of teacher in a Sentence

Experience is a good teacher.

She is a first-grade teacher.

a teacher of driver's education

Recent Examples on the Web

The percentage of certified teachers also went up at all schools. —Keri Heath, Austin American Statesman, 4 Jan. 2026

Lily Tomlin voices Miss Frizzle, an eccentric science teacher who chauffeurs her students through time, space, and the human body in a flying yellow school bus. —Will Harris, Entertainment Weekly, 4 Jan. 2026

If the bullying doesn’t stop, do seek help from school leaders, counselors, teachers, coaches and others, including your pediatrician. —Dr. Mahvash Madni, Boston Herald, 4 Jan. 2026

Yet, advocacy group Transportation Alternatives opposes Priscilla’s Law — named after Priscilla Loke, a teacher killed by an e-bike — which would require them to be registered with license plates. —Sameer Butt, New York Daily News, 4 Jan. 2026

Word History

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing teacher

• head teacher
• parent-teacher association
• student teacher
• substitute teacher
• supply teacher
• teacher's pet

Rhymes for teacher

• bleacher
• creature
• feature
• preacher
• reacher
• schoolteacher

Kids Definition

teacher

noun

teach·​er ˈtē-chər 

: one that teaches

especially : a person whose occupation is to instruct