Period vs. Frequency

An interval of time characterized by the occurrence of a certain condition, event, or phenomenon

Frequency is the number of occurrences of a repeating event per unit of time. It is also occasionally referred to as temporal frequency to emphasize the contrast to spatial frequency, and ordinary frequency to emphasize the contrast to angular frequency.

An interval of time characterized by the prevalence of a specified culture, ideology, or technology

the rate at which something occurs over a particular period of time or in a given sample

An interval regarded as a distinct evolutionary or developmental phase

the rate per second of a vibration constituting a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light)

(Geology) A unit of time, longer than an epoch and shorter than an era.

The property or condition of occurring at frequent intervals.

Any of the divisions of the academic day.

The number of repetitions of a complete sequence of values of a periodic function per unit variation of an independent variable.

Sports & Games A division of the playing time of a game.

The number of complete cycles of a periodic process occurring per unit time.

Physics & Astronomy The time interval between two successive occurrences of a recurrent event or phases of an event; a cycle

The number of repetitions per unit time of a complete waveform, as of an electric current.

See menstrual period.

The number of measurements or observations having a certain value or characteristic.

A point or portion of time at which something is ended; a completion or conclusion.

See relative frequency.

A punctuation mark ( . ) indicating a full stop, placed at the end of declarative sentences and other statements thought to be complete, and after many abbreviations.

The rate of occurrence of anything; the relationship between incidence and time period.

The full pause at the end of a spoken sentence.

(uncountable) The property of occurring often rather than infrequently.

A sentence of several carefully balanced clauses in formal writing.

(countable) The quotient of the number of times $n$ a periodic phenomenon occurs over the time $t$ in which it occurs: $f\; =\; n\; /\; t$.

A metrical unit of quantitative verse consisting of two or more cola.

(statistics) number of times an event occurred in an experiment (absolute frequency)

An analogous unit or division of classical Greek or Latin prose.

The condition of returning frequently; occurrence often repeated; common occurence; as, the frequency of crimes; the frequency of miracles.

(Music) A group of two or more phrases within a composition, often made up of 8 or 16 measures and terminating with a cadence.

A crowd; a throng.

The least interval in the range of the independent variable of a periodic function of a real variable in which all possible values of the dependent variable are assumed.

the number of occurrences within a given time period (usually 1 second);

A group of digits separated by commas in a written number.

the ratio of the number of observations in a statistical category to the total number of observations

The number of digits that repeat in a repeating decimal. For example, 1/7 = 0.142857142857 ... has a six-digit period.

the number of observations in a given statistical category

(Chemistry) A sequence of elements arranged in order of increasing atomic number and forming one of the horizontal rows in the periodic table.

Of, belonging to, or representing a certain historical age or time

Used to emphasize finality, as when expressing a decision or an opinion

A length of time.

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

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

(figurative) A decisive end to something; a stop.

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.

(euphemism) Female menstruation; an episode of this.

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

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

Each of the intervals, typically three, of which a game is divided.

One or more additional intervals to decide a tied game, an overtime period.

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

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

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

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

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

(geology) A geochronologic unit of millions to tens of millions of years; a subdivision of an era, and subdivided into epochs.

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

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

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

(archaic) End point, conclusion.

Designating anything from a given historical era. en

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

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

To come to a period; to conclude.

To put an end to.

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.

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.

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

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

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

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

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.

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

A complete musical sentence.

To put an end to.

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

an amount of time;

one of three periods of play in hockey games

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

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

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

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

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

the end or completion of something;