phase

noun
\ˈfāz \

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 \ 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

The two angle-of-attack sensors on either side of the jet’s nose differed by about 20 degrees in their measurements even during the ground taxi phase when the plane’s pitch was level. Dominic Gates, The Seattle Times, "Lion Air pilots struggled against Boeing’s 737 MAX flight-control system, black-box data shows," 27 Nov. 2018 But to save time and money, effortless IVF does not include the intensive monitoring during this phase that comes with traditional IVF and can be required every few days, Dr. Kathy Doody explains. Carolyn L. Todd, SELF, "These Two Women Both ‘Carried’ Their Baby Using Reciprocal Effortless IVF," 16 Nov. 2018 During the beta testing phase this May, hardly anyone was approved to be a beta tester, so the worlds of Maple were lonesome. Shannon Liao, The Verge, "Now that the crowd is here, the fun can begin in MapleStory 2," 4 Nov. 2018 Getty ImagesCharles McQuillan During the honeymoon phase, many newlyweds struggle with being apart. Kayleigh Roberts, Marie Claire, "Meghan Markle Has Reportedly Flown to Canada Without Prince Harry," 19 Aug. 2018 Also in attendance to support the young women—and receive a heartfelt thank you from Raisman: Judge Rosemarie Aquilina, who let every victim who wanted to speak do so during the sentencing phase of Nassar's trial. Abby Gardner, Glamour, "Watch 141 Larry Nassar Survivors Receive the Arthur Ashe Award for Courage at the 2018 ESPYS," 18 July 2018 Zlatko Dalic's men have taken the long road to a meeting with France in Moscow on Sunday after three lots of extra-time and two penalty shootouts in the knockout phase to squeeze past Denmark, Russia and England. Kieran Canning, chicagotribune.com, "Lovren: 'our mentality' carried Croatia to the World Cup final," 12 July 2018 The slaying that could send him to the death house came weeks after a robbery and another capital murder, cases the jury heard about during the punishment phase of the Harris County trial. Keri Blakinger, Houston Chronicle, "Harris County death row inmate convicted of killing man over tire rims denied federal appeal," 9 July 2018 Officials say a small portion of Beach Drive between Wise Road and West Beach Drive NW will remain open during this phase to allow for traffic to get across the park. Luz Lazo, Washington Post, "Another portion of Beach Drive reopens Monday," 8 July 2018

Recent Examples on the Web: Verb

The Senate approved a plan to phase in a $274 million increase over five years. Washington Post, "Kansas officials find $80M error in school funding measure," 10 Apr. 2018 The Senate previously passed a plan to phase in a $274 million funding increase in over five years, and its GOP leaders argued that a significantly larger boost in spending would force lawmakers to raise taxes within two years. John Hanna, BostonGlobe.com, "GOP lawmakers in Kansas move to break school funding impasse," 7 Apr. 2018 The Senate previously approved a plan to phase in a $274 million funding increase over five years. Fox News, "The Latest: Kansas lawmaker sees prayer, Bible as school fix," 7 Apr. 2018 In the program, which is set to be phased in, science, technology, engineering and math concepts, such as inquiry, would be infused throughout the school day. Sarah Freishtat, Aurora Beacon-News, "Some East Aurora elementary schools to see 'shift’ toward STEAM, but some have reservations," 1 Mar. 2018 The strawless lids will begin to appear in Seattle and Vancouver Starbucks this fall, with phased rollouts within the U.S. and Canada to follow next year. CBS News, "Starbucks plans to stop offering plastic straws by 2020," 9 July 2018 Read more: The REAL ID Act was enacted in 2005 and phased enforcement began 2013 by the Department of Homeland Security. Brandon Patterson, Detroit Free Press, "You can fly with your Michigan license until October 2020," 24 Jan. 2018 The additional students would be phased in, Armstrong said. Sarah Freishtat, Aurora Beacon-News, "Proposal approved to allow out-of-state students at IMSA," 30 May 2018 The changes will be phased in over the next six months, starting in July in Northern Kentucky. Deborah Yetter, The Courier-Journal, "Bevin teams up with nonprofit to help people keep their Medicaid," 30 May 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

11 Dec 2018

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 \

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 \

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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