Synonyms
Antonyms

1. twenty-four

adjective. ['ˈtwɛntiːˌfɔr'] being four more than twenty.

Synonyms

  • 24
  • cardinal

Antonyms

  • unimportant
  • fifty-fifth
  • forty-third

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Rhymes with Twenty Four Hour Period

  • .period
  • myriad

2. twenty-five

adjective. ['ˈtwɛntiːˌfaɪv'] being five more than twenty.

Synonyms

  • 25
  • cardinal

Antonyms

  • unimportant
  • fifty-fifth
  • forty-third

3. 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))

4. period

noun. ['ˈpɪriːəd'] an amount of time.

Synonyms

  • incubation period
  • fundamental measure
  • schooltime
  • clotting time
  • fortnight
  • term
  • reign
  • usance
  • hebdomad
  • morning
  • daytime
  • night
  • canicule
  • rainy day
  • time frame
  • time of life
  • time
  • youth
  • dog days
  • Olympiad
  • millenary
  • prehistoric culture
  • mid-April
  • calendar month
  • overtime
  • drouth
  • forenoon
  • Indian summer
  • decade
  • quarter-century
  • hours
  • phase of the moon
  • midwinter
  • weekend
  • life
  • Platonic year
  • indiction
  • sleep
  • bimillennium
  • efflorescence
  • mid-February
  • lunar time period
  • twelvemonth
  • continuance
  • dark
  • tide
  • morn
  • wartime
  • downtime
  • work time
  • week
  • quarter
  • duty tour
  • nighttime
  • peak
  • run
  • life-time
  • prehistory
  • years
  • epoch
  • mid-May
  • mid-January
  • stage
  • term of enlistment
  • hitch
  • year
  • quadrennium
  • flush
  • civil day
  • noviciate
  • enlistment
  • eve
  • bimillenary
  • yr
  • millennium
  • time period
  • honeymoon
  • lustrum
  • blossom
  • evening
  • running time
  • mid-October
  • question time
  • time of year
  • lifespan
  • occupation
  • period of time
  • day
  • semester
  • air alert
  • lease
  • Saint Martin's summer
  • prohibition
  • dawn
  • time limit
  • bimester
  • tour
  • decennium
  • mid-March
  • half-century
  • generation
  • regulation time
  • duration
  • mid-December
  • study hall
  • daylight
  • bronze age
  • test period
  • tour of duty
  • long haul
  • multistage
  • silly season
  • long time
  • puerperium
  • prime
  • mid-November
  • watch
  • mid-August
  • drought
  • midweek
  • two weeks
  • trimester
  • mid-September
  • heyday
  • time off
  • calendar week
  • lifetime
  • era
  • month
  • uptime
  • past
  • bloom
  • great year
  • century
  • phase
  • quinquennium
  • nap
  • lactation
  • window
  • age
  • season
  • hour
  • calendar day
  • canicular days
  • shelf life
  • festival
  • real time
  • hospitalization
  • morning time
  • term of a contract
  • flower
  • prohibition era
  • early days
  • iron age
  • fundamental quantity
  • elapsed time
  • school
  • silver age
  • bout
  • half-life
  • travel time
  • long run
  • novitiate
  • field day
  • half life
  • mid-July
  • Golden Age
  • extra time
  • peacetime
  • trial period
  • times
  • school day
  • decennary

Antonyms

  • work time
  • time off
  • downtime
  • overtime
  • uptime
  • day
  • night

Etymology

  • periode (Middle English (1100-1500))
  • periode (Middle French (ca. 1400-1600))

5. twenty

adjective. ['ˈtwɛnti'] denoting a quantity consisting of 20 items or units.

Synonyms

  • 20
  • cardinal

Antonyms

  • ignore
  • low status
  • overcharge

6. period

noun. ['ˈpɪriːəd'] the interval taken to complete one cycle of a regularly repeating phenomenon.

Synonyms

  • time interval
  • interval

Antonyms

  • estivate
  • wake
  • aestivate

Etymology

  • periode (Middle English (1100-1500))
  • periode (Middle French (ca. 1400-1600))

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. four

adjective. ['ˈfɔr'] being one more than three.

Synonyms

  • iv
  • cardinal

Antonyms

  • divide
  • multiply
  • integrate

Etymology

  • fower (Middle English (1100-1500))
  • feower (Old English (ca. 450-1100))

9. 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)

10. four

noun. ['ˈfɔr'] the cardinal number that is the sum of three and one.

Synonyms

  • digit
  • quaternity
  • quadruplet
  • tetrad
  • IV
  • 4
  • figure
  • quatern
  • quartet
  • quaternary
  • Little Joe
  • foursome

Antonyms

  • cardinal
  • single
  • be born
  • survive

Etymology

  • fower (Middle English (1100-1500))
  • feower (Old English (ca. 450-1100))
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