in common

adjective, com·mon·er, com·mon·est.

1. belonging equally to, or shared alike by, two or more or all in question: common property; common interests.
2. pertaining or belonging equally to an entire community, nation, or culture; public: a common language or history; a common water-supply system.
3. joint; united: a common defense.
4. widespread; general; ordinary: common knowledge.
5. of frequent occurrence; usual; familiar: a common event; a common mistake.
6. hackneyed; trite.
7. of mediocre or inferior quality; mean; low: a rough-textured suit of the most common fabric.
8. coarse; vulgar: common manners.
9. lacking rank, station, distinction, etc.; unexceptional; ordinary: a common soldier; common people; the common man; a common thief.
10. Dialect. friendly; sociable; unaffected.
11. Anatomy. forming or formed by two or more parts or branches: the common carotid arteries.
12. Prosody. (of a syllable) able to be considered as either long or short.
13. Grammar.
    1. not belonging to an inflectional paradigm; fulfilling different functions that in some languages require different inflected forms: English nouns are in the common case whether used as subject or object.
    2. constituting one of two genders of a language, especially a gender comprising nouns that were formerly masculine or feminine: Swedish nouns are either common or neuter.
    3. noting a word that may refer to either a male or a female: French élève has common gender. English lacks a common gender pronoun in the third person singular.
    4. (of a noun) belonging to the common gender.
14. Mathematics. bearing a similar relation to two or more entities.
15. of, relating to, or being common stock: common shares.

noun

16. Often commons. Chiefly New England. a tract of land owned or used jointly by the residents of a community, usually a central square or park in a city or town.
17. Law. the right or liberty, in common with other persons, to take profit from the land or waters of another, as by pasturing animals on another’s land (common of pasturage) or fishing in another’s waters (common of piscary).
18. commons, (used with a singular or plural verb)
    1. the commonalty; the nonruling class.
    2. the body of people not of noble birth or not ennobled, as represented in England by the House of Commons.
    3. (initial capital letter)the representatives of this body.
    4. (initial capital letter)the House of Commons.
19. commons,
    1. (used with a singular verb)a large dining room, especially at a university or college.
    2. (usually used with a plural verb)British.food provided in such a dining room.
    3. (usually used with a plural verb)food or provisions for any group.
20. (sometimes initial capital letter) Ecclesiastical.
    1. an office or form of service used on a festival of a particular kind.
    2. the ordinary of the Mass, especially those parts sung by the choir.
    3. the part of the missal and breviary containing Masses and offices of those saints assigned to them.
21. Obsolete.
    1. the community or public.
    2. the common people.

Idioms

22. in common, in joint possession or use; shared equally: They have a love of adventure in common.

adjective

1. belonging to or shared by two or more peoplecommon property
2. belonging to or shared by members of one or more nations or communities; publica common culture
3. of ordinary standard; averagecommon decency
4. prevailing; widespreadcommon opinion
5. widely known or frequently encountered; ordinarya common brand of soap
6. widely known and notoriousa common nuisance
7. derogatory considered by the speaker to be low-class, vulgar, or coarsea common accent
8. (prenominal) having no special distinction, rank, or statusthe common man
9. maths
   1. having a specified relationship with a group of numbers or quantitiescommon denominator
   2. (of a tangent) tangential to two or more circles
10. prosody (of a syllable) able to be long or short, or (in nonquantitative verse) stressed or unstressed
11. grammar (in certain languages) denoting or belonging to a gender of nouns, esp one that includes both masculine and feminine referentsLatin sacerdos is common
12. anatomy
    1. having branchesthe common carotid artery
    2. serving more than one functionthe common bile duct
13. Christianity of or relating to the common of the Mass or divine office
14. common or garden informal ordinary; unexceptional

noun

15. (sometimes plural) a tract of open public land, esp one now used as a recreation area
16. law the right to go onto someone else’s property and remove natural products, as by pasturing cattle or fishing (esp in the phrase right of common)
17. Christianity
    1. a form of the proper of the Mass used on festivals that have no special proper of their own
    2. the ordinary of the Mass
18. archaic the ordinary people; the public, esp those undistinguished by rank or title
19. in common mutually held or used with another or others

adj.

c.1300, “belonging to all, general,” from Old French comun “common, general, free, open, public” (9c., Modern French commun), from Latin communis “in common, public, shared by all or many; general, not specific; familiar, not pretentious,” from PIE *ko-moin-i- “held in common,” compound adjective formed from *ko- “together” + *moi-n-, suffixed form of root *mei- “change, exchange” (see mutable), hence literally “shared by all.”

Second element of the compound also is the source of Latin munia “duties, public duties, functions,” those related to munia “office.” Perhaps reinforced in Old French by the Germanic form of PIE *ko-moin-i- (cf. Old English gemæne “common, public, general, universal;” see mean (adj.)), which came to French via Frankish.

Used disparagingly of women and criminals since c.1300. Common pleas is 13c., from Anglo-French communs plets, hearing civil actions by one subject against another as opposed to pleas of the crown. Common prayer is contrasted with private prayer. Common stock is attested from 1888.

n.

late 15c., “land held in common,” from common (adj.). Commons “the third estate of the English people as represented in Parliament,” is from late 14c. Latin communis also served as a noun meaning “common property, state, commonwealth.”

1

Shared characteristics, as in One of the few things John and Mary have in common is a love of music. [Mid-1600s]

2

Held equally, in joint possession or use, as in This land is held in common by all the neighbors. [Late 1300s]

In addition to the idioms beginning with common

• common cause
• common ground
• common touch, the

also see:

• in common