Synonyms of the word

era

• n. A time period of indeterminate length, generally more than one year.
• n. (geology) A unit of time, smaller than eons and greater than periods.

criterion

• n. A standard or test by which individual things or people may be compared and judged.

epoch

• n. A particular period of history, especially one considered remarkable or noteworthy.
• n. A notable event which marks the beginning of such a period.
• n. (astronomy) A precise instant of time that is used as a reference point.
• n. (computing, uncountable) A precise instant of time that is used as a reference point (e.g. January 1,…
• n. (computing) One complete presentation of the training data set to an iterative machine learning algorithm.
• v. (sciences, transitive) To divide (data) into segments by time period.

measure

• n. A prescribed quantity or extent.
• n. The act or result of measuring.
• n. Metrical rhythm.
• n. A course of action.
• v. To ascertain the quantity of a unit of material via calculated comparison with respect to a standard.
• v. To estimate the unit size of something.
• v. To judge, value, or appraise.
• v. To obtain or set apart; to mark in even increments.
• v. (rare) To traverse, cross, pass along; to travel over.
• v. To adjust by a rule or standard.
• v. To allot or distribute by measure; to set off or apart by measure; often with out or off.

period

• adj. Appropriate for a given historical era.
• adj. (of a film, or play, or similar) Set in and designed to evoke a particular historical period, especially…
• interj. (chiefly Canada, US) And nothing else; and nothing less; used for emphasis.
• n. A length of time.
• n. A period of time in history seen as a single coherent entity; an epoch, era.
• n. (now chiefly Canada, US) The punctuation mark “.” (indicating the ending of a sentence or marking an abbreviation).
• n. The length of time during which the same characteristics of a periodic phenomenon recur, such as the repetition…
• n. Female menstruation.
• n. A section of an artist's, writer's (etc.) career distinguished by a given quality, preoccupation etc.
• n. Each of the divisions into which a school day is split, allocated to a given subject or activity.
• n. (chiefly Canada, US) Each of the intervals into which various sporting events are divided.
• n. (obsolete, medicine) The length of time for a disease to run its course.
• n. An end or conclusion; the final point of a process etc.
• n. (rhetoric) A complete sentence, especially one expressing a single thought or making a balanced, rhythmic…
• n. (obsolete) A specific moment during a given process; a point, a stage.
• n. (chemistry) A row in the periodic table of the elements.
• n. (geology) A subdivision of an era, typically lasting from tens to hundreds of millions of years, see Appendix:…
• n. (genetics) A Drosophila gene which gene product is involved in regulation of the circadian rhythm.
• n. (music) Two phrases (an antecedent and a consequent phrase).
• n. (mathematics) One of several similar sets of figures or terms usually marked by points or commas placed…
• v. (obsolete, intransitive) To come to a period; to conclude.
• v. (obsolete, transitive, rare) To put an end to.

standard

• adj. Falling within an accepted range of size, amount, power, quality, etc.
• adj. (of a tree or shrub) Growing alone as a free-standing plant; not trained on a post etc.
• adj. Having recognized excellence or authority.
• adj. Of a usable or serviceable grade or quality.
• adj. (not comparable, of a motor vehicle) Having a manual transmission.
• adj. As normally supplied (not optional).
• n. A principle or example or measure used for comparison.
• n. A vertical pole with something at its apex.
• n. A manual transmission vehicle.
• n. (botany) The upper petal or banner of a papilionaceous corolla.
• n. (shipbuilding) An inverted knee timber placed upon the deck instead of beneath it, with its vertical branch…
• n. A large drinking cup.

touchstone

• n. A stone used to check the quality of gold alloys by rubbing them to leave a visible trace.
• n. (figuratively, by extension) A standard of comparison or evaluation.