VS.

Era vs. Period

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Eranoun

A time period of indeterminate length, generally more than one year.

Periodnoun

A length of time.

‘There was a period of confusion following the announcement.’; ‘You'll be on probation for a six-month period.’;

Eranoun

(geology) A unit of time, smaller than eons and greater than periods.

Periodnoun

A period of time in history seen as a single coherent entity; an epoch, era.

‘Food rationing continued in the post-war period.’;

Eranoun

A fixed point of time, usually an epoch, from which a series of years is reckoned.

‘The foundation of Solomon's temple is conjectured by Ideler to have been an era.’;

Periodnoun

The punctuation mark “.” (indicating the ending of a sentence or marking an abbreviation).

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Eranoun

A period of time reckoned from some particular date or epoch; a succession of years dating from some important event; as, the era of Alexander; the era of Christ, or the Christian era (see under Christian).

‘The first century of our era.’;

Periodnoun

The length of time during which the same characteristics of a periodic phenomenon recur, such as the repetition of a wave or the rotation of a planet.

Eranoun

A period of time in which a new order of things prevails; a signal stage of history; an epoch.

‘Painting may truly be said to have opened the new era of culture.’;

Periodnoun

Female menstruation.

‘When she is on her period, she prefers not to go swimming.’;

Eranoun

a period marked by distinctive character or reckoned from a fixed point or event

Periodnoun

A section of an artist's, writer's (etc.) career distinguished by a given quality, preoccupation etc.

‘This is one of the last paintings Picasso created during his Blue Period.’;

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Eranoun

a major division of geological time; an era is usually divided into two or more periods

Periodnoun

Each of the divisions into which a school day is split, allocated to a given subject or activity.

‘I have math class in second period.’;

Era

An era is a span of time defined for the purposes of chronology or historiography, as in the regnal eras in the history of a given monarchy, a calendar era used for a given calendar, or the geological eras defined for the history of Earth. Comparable terms are epoch, age, period, saeculum, aeon (Greek aion) and Sanskrit yuga.

Periodnoun

Each of the intervals into which various sporting events are divided.

‘Gretzky scored in the last minute of the second period.’;

Periodnoun

The length of time for a disease to run its course.

Periodnoun

An end or conclusion; the final point of a process etc.

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Periodnoun

(rhetoric) A complete sentence, especially one expressing a single thought or making a balanced, rhythmic whole.

Periodnoun

(obsolete) A specific moment during a given process; a point, a stage.

Periodnoun

(chemistry) A row in the periodic table of the elements.

Periodnoun

(geology) A subdivision of an era, typically lasting from tens to hundreds of millions of years, see Appendix: Geologic timescale.

Periodnoun

(genetics) A Drosophila gene, the gene product of which is involved in regulation of the circadian rhythm.

Periodnoun

(music) Two phrases (an antecedent and a consequent phrase).

Periodnoun

(math) The length of an interval over which a periodic function, periodic sequence or repeating decimal repeats; often the least such length.

Periodnoun

(archaic) End point, conclusion.

Periodadjective

Designating anything from a given historical era.

‘a period car’; ‘a period TV commercial’;

Periodadjective

Evoking, or appropriate for, a particular historical period, especially through the use of elaborate costumes and scenery.

Periodinterjection

That's final; that's the end of the matter (analogous to a period ending a sentence).

‘I know you don't want to go to the dentist but your teeth need to be checked, period!’;

Periodverb

To come to a period; to conclude.

Periodverb

To put an end to.

Periodnoun

A portion of time as limited and determined by some recurring phenomenon, as by the completion of a revolution of one of the heavenly bodies; a division of time, as a series of years, months, or days, in which something is completed, and ready to recommence and go on in the same order; as, the period of the sun, or the earth, or a comet.

Periodnoun

A stated and recurring interval of time; more generally, an interval of time specified or left indefinite; a certain series of years, months, days, or the like; a time; a cycle; an age; an epoch; as, the period of the Roman republic.

‘How by art to make plants more lasting than their ordinary period.’;

Periodnoun

One of the great divisions of geological time; as, the Tertiary period; the Glacial period. See the Chart of Geology.

Periodnoun

The termination or completion of a revolution, cycle, series of events, single event, or act; hence, a limit; a bound; an end; a conclusion.

‘So spake the archangel Michael; then paused,As at the world's great period.’; ‘Evils which shall never end till eternity hath a period.’; ‘This is the period of my ambition.’;

Periodnoun

A complete sentence, from one full stop to another; esp., a well-proportioned, harmonious sentence.

‘Periods are beautiful when they are not too long.’;

Periodnoun

The punctuation point [.] that marks the end of a complete sentence, or of an abbreviated word.

Periodnoun

One of several similar sets of figures or terms usually marked by points or commas placed at regular intervals, as in numeration, in the extraction of roots, and in circulating decimals.

Periodnoun

The time of the exacerbation and remission of a disease, or of the paroxysm and intermission.

Periodnoun

A complete musical sentence.

Periodverb

To put an end to.

Periodverb

To come to a period; to conclude. [Obs.] "You may period upon this, that," etc.

Periodnoun

an amount of time;

‘a time period of 30 years’; ‘hastened the period of time of his recovery’; ‘Picasso's blue period’;

Periodnoun

one of three periods of play in hockey games

Periodnoun

a stage in the history of a culture having a definable place in space and time;

‘a novel from the Victorian period’;

Periodnoun

the interval taken to complete one cycle of a regularly repeating phenomenon

Periodnoun

the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause;

‘the women were sickly and subject to excessive menstruation’; ‘a woman does not take the gout unless her menses be stopped’; ‘the semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females’;

Periodnoun

a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations;

‘in England they call a period a stop’;

Periodnoun

a unit of geological time during which a system of rocks formed;

‘ganoid fishes swarmed during the earlier geological periods’;

Periodnoun

the end or completion of something;

‘death put a period to his endeavors’; ‘a change soon put a period to my tranquility’;

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