An intuitive feeling or guess about something, often without concrete evidence or logical reasoning. It represents a sudden sense or suspicion that something might be true, typically based on subconscious pattern recognition.
Originally meaning 'to push, thrust' from unknown origin, possibly related to 'hump'. The meaning 'intuitive feeling' developed in American English around 1900, possibly from the idea of hunching forward when concentrating or from 'hunch-backed' fortune tellers who claimed special insight. The semantic shift from physical posture to mental state is relatively recent.
Hunches are actually your brain's rapid-fire pattern recognition system at work - what feels like mysterious intuition is often your subconscious processing thousands of subtle cues too quickly for conscious awareness! Studies of expert firefighters and nurses show that professional 'hunches' are remarkably accurate because they're based on years of pattern recognition stored in implicit memory.
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