'sneak up' definitions:
verb
Advance stealthily or unnoticed; "Age creeps up on you" [syn:
creep up, sneak up]
Words containing 'sneak up'
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Sneak,
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Sneaked,
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Sneaking,
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Sneakingly,
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sneak in,
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sneak off,
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sneak out,
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Sneak current,
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quarterback sneak,
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sneak away,
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sneak preview,
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sneak thief,
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Sneak-cup