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Dictionary.com Unabridged (v 1.1) - Cite This Source
star·tle Pronunciation verb, -tled, -tling, noun
–verb (used with object)

1. to disturb or agitate suddenly as by surprise or alarm.
2. to cause to start involuntarily, by or as by a sudden shock. –verb (used without object)
3. to start involuntarily, as from a shock of surprise or alarm. –noun
4. a sudden shock of surprise, alarm, or the like.
5. something that startles.

[Origin: bef. 1100; ME stertlen to rush, caper, equiv. to stert(en) to start + -(e)len -le, or continuing OE steartlian to kick, struggle] —Related forms
star·tle·ment, noun
startler, noun
—Synonyms 1. scare, frighten, astonish. See shock1.
Dictionary.com Unabridged (v 1.1)Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

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