contagious yawn
- noun
- /kənˈteɪdʒəs jɔn/
- During the meeting, one contagious yawn set off a chain reaction among the attendees.
Examples
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The contagious yawn spread through the room.
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The sound of her contagious yawn quickly spread around the office, making everyone sleepy.
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Seeing his friend’s contagious yawn, he couldn’t help but yawn as well.
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Why do people experience a contagious yawn?
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When one person starts yawning in a meeting, it's common for others to follow suit, demonstrating how contagious yawn can be.
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The teacher noticed a contagious yawn spreading across the classroom as soon as the clock struck 3 PM.
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During the long lecture, a single contagious yawn triggered a chain reaction among the students.
Surface Forms
Morphology
The noun phrase is directly compositional: 'contagious' (capable of being spread) modifies 'yawn' (an involuntary inhalation), so the combined meaning is a yawn that spreads to others. This adjective + noun pattern is transparent and cross-linguistically common, so a B1 learner who knows both words would readily infer the MWE's meaning.
Etymology
The noun contagious yawn comes from the clear image of a yawn that 'spreads' to other people. When one person's yawn makes others yawn too, it is called contagious, so the phrase means 'a yawn that makes others yawn'.