Synonyms

1. flower-of-an-hour

noun. annual weedy herb with ephemeral yellow purple-eyed flowers; Old World tropics; naturalized as a weed in North America.

Synonyms

  • bladder ketmia
  • Hibiscus trionum
  • black-eyed Susan
  • flowers-of-an-hour

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Rhymes with Sidereal Hour

  • dessauer
  • scour
  • n'dour
  • krauer
  • flour
  • blauer
  • sour
  • lour
  • jour
  • dower
  • dour
  • bour

2. horsepower-hour

noun. a unit of work equal to the work done by one horsepower in one hour.

Synonyms

  • heat unit
  • energy unit

3. quarter-hour

noun. a quarter of an hour.

Synonyms

  • hour
  • unit of time
  • time unit
  • hr
  • 15 minutes

Antonyms

  • sunrise

4. ampere-hour

noun. a unit of charge equal to 3600 coulombs.

Synonyms

  • charge unit
  • ampere-minute

5. half-hour

noun. ['ˈhæˌfaʊɝ'] a half of an hour.

Synonyms

  • hour
  • unit of time
  • hr
  • 30 minutes
  • time unit

Antonyms

  • sunrise

Etymology

  • half- (English)
  • hour (English)
  • houre (Middle English (1100-1500))

6. watt-hour

noun. a unit of energy equal to the power of one watt operating for one hour.

Synonyms

  • energy unit
  • work unit
  • kW-hr
  • heat unit
  • Board of Trade unit
  • B.T.U.

7. hour

noun. ['ˈaʊɝ, ˈaʊr'] a period of time equal to 1/24th of a day.

Synonyms

  • unit of time
  • hr
  • quarter
  • 60 minutes
  • minute
  • twenty-four hours
  • 15 minutes
  • 24-hour interval
  • sidereal hour
  • 30 minutes
  • min
  • mean solar day
  • twenty-four hour period
  • solar day
  • person hour
  • half-hour
  • man hour
  • time unit
  • day

Antonyms

  • end
  • stay
  • day
  • night

Etymology

  • houre (Middle English (1100-1500))
  • houre (Anglo-Norman)

8. hour

noun. ['ˈaʊɝ, ˈaʊr'] clock time.

Synonyms

  • twilight
  • crepuscule
  • dawn
  • first light
  • happy hour
  • noon
  • high noon
  • closing time
  • late-night hour
  • dayspring
  • morning
  • sunrise
  • noontide
  • cockcrow
  • dusk
  • early-morning hour
  • canonical hour
  • gloaming
  • time of day
  • dawning
  • time
  • mealtime
  • sunset
  • zero hour
  • daybreak
  • midday
  • nightfall
  • evenfall
  • small hours
  • none
  • twelve noon
  • fall
  • aurora
  • bedtime
  • break of day
  • sundown
  • gloam
  • noonday
  • midnight
  • sunup
  • crepuscle
  • rush hour
  • break of the day

Antonyms

  • sunrise
  • old
  • lighten
  • future

Etymology

  • houre (Middle English (1100-1500))
  • houre (Anglo-Norman)

9. hour

noun. ['ˈaʊɝ, ˈaʊr'] a special and memorable period.

Synonyms

  • period
  • time period

Antonyms

  • first
  • new
  • all

Etymology

  • houre (Middle English (1100-1500))
  • houre (Anglo-Norman)

10. hour

noun. ['ˈaʊɝ, ˈaʊr'] distance measured by the time taken to cover it.

Synonyms

  • distance

Antonyms

  • antemeridian
  • light

Etymology

  • houre (Middle English (1100-1500))
  • houre (Anglo-Norman)
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