Pronunciation: /ˈmʌtərɪŋ/
noun A person who mutters
A1 She walked by, muttering under her breath.
A2 The old man sat on the bench, muttering to himself.
B1 The students were caught muttering during the exam.
B2 The politician was overheard muttering about his opponent in frustration.
C1 The professor was muttering about the complexities of quantum physics during the lecture.
C2 The artist could be seen muttering to herself as she worked on her masterpiece.
verb Speaking quietly and indistinctly
A1 She was muttering under her breath as she walked down the street.
A2 The old man was muttering to himself while waiting for the bus.
B1 The teacher caught the student muttering during the exam.
B2 The politician was caught muttering about his opponent during the debate.
C1 The CEO was overheard muttering about upcoming layoffs in the company.
C2 The professor was muttering complex equations as he worked on his research.
formal The professor walked into the classroom muttering to himself about the upcoming lecture.
informal I could hear my mom muttering in the kitchen as she prepared dinner.
slang The group of teenagers were muttering about the new gossip spreading around school.
figurative The old man sat on the park bench, muttering to the pigeons as if they were his old friends.
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