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join

[join]
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verb (used with object)
  1. to bring in contact, connect, or bring or put together: to join hands; to join pages with a staple.
  2. to come into contact or union with: The brook joins the river.
  3. to bring together in a particular relation or for a specific purpose, action, etc.; unite: to join forces against the smugglers.
  4. to become a member of (an organization, party, etc.): to join a club.
  5. to enlist in (one of the armed forces): to join the Navy.
  6. to come into the company of; meet or accompany: I'll join you later.
  7. to participate with (someone) in some act or activity: My wife joins me in thanking you for the gift.
  8. to unite in marriage.
  9. to meet or engage in (battle, conflict, etc.): The opposing armies joined battle.
  10. to adjoin; meet: His land joins mine.
  11. to draw a curve or straight line between: to join two points on a graph.
verb (used without object)
  1. to come into or be in contact or connection: a place where cliffs and sea join.
  2. to become united, associated, or combined; associate or ally oneself; participate (usually followed by with): Please join with us in our campaign.
  3. to take part with others (often followed by in): Let's all join in.
  4. to be contiguous or close; lie or come together; form a junction: Our farms join along the river.
  5. to enlist in one of the armed forces (often followed by up): He joined up to fight for his country.
  6. to meet in battle or conflict.
noun
  1. a joining.
  2. a place or line of joining; seam.
  3. Mathematics. union(def 10a).

Origin of join

1250–1300; Middle English joinen < Old French joign- (stem of joindre to join) < Latin jungere to yoke1, join
Related formsjoin·a·ble, adjectivemis·join, verbun·der·join, verb (used with object)un·join, verbun·join·a·ble, adjectivewell-joined, adjective

Synonyms

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1. link, couple, fasten, attach; conjoin, combine; associate, consolidate, amalgamate. Join, connect, unite all imply bringing two or more things together more or less closely. Join may refer to a connection or association of any degree of closeness, but often implies direct contact: One joins the corners of a mortise together. Connect implies a joining as by a tie, link, or wire: One connects two batteries. Unite implies a close joining of two or more things, so as to form one: One unites layers of veneer sheets to form plywood. 10. abut, border.

Antonyms

1, 12. separate, divide.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for join up

join up

verb (adverb)
  1. (intr) to become a member of a military or other organization; enlist
  2. (often foll by with) to unite or connect

join

verb
  1. to come or bring together; connect
  2. to become a member of (a club, organization, etc)
  3. (intr often foll by with) to become associated or allied
  4. (intr usually foll by in) to take part
  5. (tr) to meet (someone) as a companion
  6. (tr) to become part of; take a place in or with
  7. (tr) to unite (two people) in marriage
  8. (tr) geometry to connect with a straight line or a curve
  9. (tr) an informal word for adjoin
  10. join battle to start fighting
  11. join duty Indian to report for work after a period of leave or a strike
  12. join hands
    1. to hold one's own hands together
    2. (of two people) to hold each other's hands
    3. (usually foll by with)to work together in an enterprise or task
noun
  1. a joint; seam
  2. the act of joining
  3. maths another name for union (def. 9)
See also join up
Derived Formsjoinable, adjective

Word Origin

C13: from Old French joindre from Latin jungere to yoke
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for join up

join

v.

c.1300, from stem of Old French joindre "join, connect, unite; have sexual intercourse with" (12c.), from Latin iungere "to join together, unite, yoke," from PIE *yeug- "to join, unite" (see jugular). Related: Joined; joining. In Middle English, join sometimes is short for enjoin. Join up "enlist in the army" is from 1916. Phrase if you can't beat them, join them is from 1953.

Online Etymology Dictionary, © 2010 Douglas Harper