The phrasal verb "tune out" is predominantly used in informal contexts, such as casual conversations and everyday dialogue. It generally means to ignore, dismiss, or stop paying attention to something or someone, often as a conscious choice. People might tune out during a long or tedious lecture, in the middle of repetitive tasks, or when overwhelmed by information. "Tune out" is common in spoken English and is typically used by native speakers to describe the act of mentally disconnecting from external stimuli or conversation. Occasionally, it can appear in more casual written forms, such as emails or text messages, where informal language is appropriate. While it is widely understood, it might be replaced by more formal synonyms like "disregard" or "ignore" in formal writing or professional contexts to maintain a suitable tone.
B2
UpperIntermediate
1. To stop listening to or to ignore someone or something.
Whenever the conversation turns to sports, she tends to tune out.
He tuned out the noise from the traffic by listening to music.
2. To lose interest or become unresponsive to one's surroundings.
After a while, the lecture became so boring that I just tuned out.
During long meetings, it's easy to tune out and start daydreaming.