phase

noun
\ ˈfāz How to pronounce phase (audio) \

Definition of phase

 (Entry 1 of 2)

1 : a particular appearance or state in a regularly recurring cycle of changes phases of the moon
2a : a distinguishable part in a course, development, or cycle the early phases of her career
b : an aspect or part (as of a problem) under consideration
3 : the point or stage in a period of uniform circular motion, harmonic motion, or the periodic changes of any magnitude varying according to a simple harmonic law to which the rotation, oscillation, or variation has advanced from its standard position or assumed instant of starting
4 : a homogeneous, physically distinct, and mechanically separable portion of matter present in a nonhomogeneous physicochemical system
5 : an individual or subgroup distinguishably different in appearance or behavior from the norm of the group to which it belongs also : the distinguishing peculiarity
in phase
: in a synchronized or correlated manner
out of phase
: in an unsynchronized manner : not in correlation

phase

verb
phased; phasing

Definition of phase (Entry 2 of 2)

transitive verb

1 : to adjust so as to be in a synchronized condition
2 : to conduct or carry out by planned phases
3 : to introduce in stages usually used with in phase in new models

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Other Words from phase

Noun

phasic \ ˈfā-​zik How to pronounce phasic (audio) \ adjective

Synonyms for phase

Synonyms: Noun

angle, aspect, facet, hand, side

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Examples of phase in a Sentence

Noun

The project will be done in three phases. He's in the final phase of treatment now. The building project marks a new phase in the town's development. He has been throwing tantrums a lot, but the doctor says it's just a phase. a calendar based on the phases of the moon
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Recent Examples on the Web: Noun

During the first phase, InSight will free-fall through the atmosphere using a heat shield for protection as the surrounding air slams into the spacecraft, heating it up to temperatures of 2,700 degrees Fahrenheit. Loren Grush, The Verge, "Watch NASA engineers track the harrowing landing of a spacecraft on Mars today," 26 Nov. 2018 Tipped as dark horses for the title leading up to the tournament, Belgium kept excitement brimming over during a superb group phase that reaped nine goals for only two conceded. Justin Davis, chicagotribune.com, "Martinez: Belgium are 'very excited' to face Brazil in World Cup quarterfinals," 5 July 2018 During the earliest phase, radiocarbon-dated to around 2300 B.C.E., the pits were filled with broken bits of ceramic drinking vessels, stone axs, millstones, and butchered animal bones. Michael Price, Science | AAAS, "Rituals performed at this German ‘Stonehenge’ may link mysterious monument to its U.K. counterpart," 28 June 2018 During the first part of Phase 1, motorists northbound on Appleton Avenue cannot turn right onto Main Street; during the second phase, westbound motorists on Main Street cannot turn right (north) onto Appleton Avenue. Steven Martinez, Milwaukee Journal Sentinel, "Here's a list of summer road construction projects in Menomonee Falls and how to avoid them," 26 June 2018 The most recent phase has been smorgasbord diplomacy: offering Mr. Kim a menu of friendly treats from which to choose. Robert B. Zoellick, WSJ, "How to Negotiate With Kim Jong Un," 24 Feb. 2019 What ensues is the first proper slutty phase of my adult life. Maya Singer, Vogue, "My Best Dating Story," 8 Feb. 2019 The third and final phase is when the FCC moves to proton–proton collisions, which is where the real scientific discoveries are going to be made. Avery Thompson, Popular Mechanics, "Scientists Are Planning a New Particle Collider That Absolutely Dwarfs the LHC," 16 Jan. 2019 The newest set of rescues came about six hours after Chiang Rai acting Gov. Narongsak Osatanakorn said the second phase was underway. Fox News, "Thailand cave rescue operation suspended as 4 more boys freed, bringing total to 8," 2 Oct. 2018

Recent Examples on the Web: Verb

That program is currently being contested in court after the Trump administration moved in September 2017 to phase it out. Alex Leary, WSJ, "Trump Signals Willingness to Negotiate on Skilled Foreign Workers," 4 Jan. 2019 The increase, which will be phased in over ten years for men and 16 years for women, should significantly reduce the burden on the federal budget and allow for higher pensions to be paid. The Economist, "Russia will raise pension ages that date back to Stalin," 30 June 2018 The Center on Budget and Policy Priorities estimates those hikes could reach 44 percent on average, once the program was fully phased in over six years. Allie Gross, Detroit Free Press, "Ben Carson, in Detroit, draws questions on rent hikes for poor people," 7 June 2018 Among the obstacles is the question of whether the United States would be willing to make partial concessions on sanctions relief and other matters if North Korea asks for a phased-in approach to disarmament. Michael D. Shear, BostonGlobe.com, "US officials enter North Korea to lay groundwork for summit meeting," 27 May 2018 The task force had also recommended a per-ride surcharge of $2 to $5 on for-hire vehicles in a phased-in approach to congestion pricing. Winnie Hu, New York Times, "Congestion Pricing Falters in New York, Again," 31 Mar. 2018 Since December 2016, officials have deviated from quarterly increases just once, in September 2017, to phase in a reduction in their $4.5 trillion bond portfolio. Nick Timiraos, WSJ, "Fed Weighs Wait-and-See Approach on Future Rate Increases," 6 Dec. 2018 Once the castoffs were put in a donation bin, Marie got down to phase two: Organizing. Candace Braun Davison, House Beautiful, "Can Marie Kondo Conquer Caboodles?," 17 Aug. 2018 Current tenants will have rent increases phased in. Bill Leukhardt, Courant Community, "Waiting List Open For Southington Housing Authority Apartments," 13 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'phase.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of phase

Noun

1647, in the meaning defined at sense 1

Verb

1904, in the meaning defined at sense 1

History and Etymology for phase

Noun

New Latin phasis, from Greek, appearance of a star, phase of the moon, from phainein to show (middle voice, to appear) — more at fancy

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Statistics for phase

Last Updated

17 Apr 2019

Look-up Popularity

Time Traveler for phase

The first known use of phase was in 1647

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More Definitions for phase

phase

noun

English Language Learners Definition of phase

: a part or step in a process : one part in a series of related events or actions
: a short period of time during which a person behaves in a particular way or likes a particular thing
: the shape of the part of the moon that is visible at different times during a month

phase

noun
\ ˈfāz How to pronounce phase (audio) \

Kids Definition of phase

1 : a step or part in a series of events or actions : stage I have completed the first phase of my training.
2 : the way that the moon or a planet looks to the eye at any time in its series of changes with respect to how it shines The new moon and the full moon are two phases of the moon.

phase

noun
\ ˈfāz How to pronounce phase (audio) \

Medical Definition of phase

1 : a particular appearance or state in a regularly recurring cycle of changes
2 : a distinguishable part in a course, development, or cycle the early phases of a disease
3 : a point or stage in the period of a periodic motion or process (as a light wave or a vibration) in relation to an arbitrary reference or starting point in the period
4 : a homogeneous, physically distinct, and mechanically separable portion of matter present in a nonhomogeneous physicochemical system especially : one of the fundamental states of matter usually considered to include the solid, liquid, and gaseous forms
5 : an individual or subgroup distinguishably different in appearance or behavior from the norm of the group to which it belongs also : the distinguishing peculiarity

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More from Merriam-Webster on phase

Thesaurus: All synonyms and antonyms for phase

Spanish Central: Translation of phase

Nglish: Translation of phase for Spanish Speakers

Britannica English: Translation of phase for Arabic Speakers

Britannica.com: Encyclopedia article about phase

Comments on phase

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