alarm clock
Noun
Meaning
a clock that wakes a sleeper at some preset time
Source: WordNetSynonyms
Antonyms
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Examples
A further contributory singular cause of my being awoken by my alarm clock this morning was that I was lying asleep near it till it rang.
An example of singular causation is that I woke this morning because my alarm clock rang.
Can anyone honestly envision Brady — who has business interests outside of football — playing in a small market like Tampa, for a franchise that hasn’t reached the postseason since 2007, wearing one of those ridiculous alarm clock jerseys?
After enduring the sudden, unrelenting attack of his bedside alarm clock, Blume resisted the near-overpowering compulsion to press the snooze button a second time.
An alarm clock clanged in the dark and silent room.
An alarm clock that awakens you with a splash of water, or maybe a helpful smack in the face?