join

join v.

to (cause to) come into or be in contact or connection with;
connect: [~ + object]They all joined hands.[no object]Their hands joined and they formed a circle.[~ + up + object]joined up the hose with the faucet.[~ + object + up]joined the parts up into a whole.
to come into contact or union with: [~ + object]The brook joins the river.[no object]The two rivers joined before they reached the sea.
to (cause to) come together in a particular relation or for a specific purpose;
unite: [~ + object]Join us and help fight poverty.[~ + with + object]Join with us in our campaign.
to become a member of:[~ + object]to join a club.
to enlist (in), as a branch of the armed forces: [~ + object]to join the Navy.[~ + up]joined up and went to sea.
to come into the company of;
meet or accompany (someone), so as to participate with or in some activity:[~ + object]Can you join us for a drink?
to bring into close relationship:[~ + object]joined them in matrimony.
join in, to take part in;
become involved in: [no object]was too shy to join in.[~ + in + object]Wouldn't you like to join in the fun?

See -junc-.

join v.t.

to bring in contact, connect, or bring or put together:to join hands; to join pages with a staple.
to come into contact or union with:The brook joins the river.
to bring together in a particular relation or for a specific purpose, action, etc.;
unite:to join forces against the smugglers.
to become a member of (an organization, party, etc.):to join a club.
to enlist in (one of the armed forces):to join the Navy.
to come into the company of;
meet or accompany:I'll join you later.
to participate with (someone) in some act or activity:My wife joins me in thanking you for the gift.
to unite in marriage.
to meet or engage in (battle, conflict, etc.):The opposing armies joined battle.
to adjoin;
meet:His land joins mine.
Mathematicsto draw a curve or straight line between:to join two points on a graph.

v.i.

to come into or be in contact or connection:a place where cliffs and sea join.
to become united, associated, or combined;
associate or ally oneself;
participate (usually fol. by with):Please join with us in our campaign.
to take part with others (often fol. by in):Let's all join in.
to be contiguous or close;
lie or come together;
form a junction:Our farms join along the river.
to enlist in one of the armed forces (often fol. by up):He joined up to fight for his country.
to meet in battle or conflict.

join′a•ble, adj.

Join,

connect,

unite

Join

One joins the corners of a mortise together.

Connect

One connects two batteries.

Unite

One unites layers of veneer sheets to form plywood.

10.

12.

Collins Concise English Dictionary © HarperCollins Publishers::

join /dʒɔɪn/ vb

to come or bring together; connect
to become a member of (a club, organization, etc)
(intransitive) often followed by with: to become associated or allied
(intransitive) usually followed by in: to take part
(transitive) to meet (someone) as a companion
(transitive) to become part of; take a place in or with
(transitive) to unite (two people) in marriage
(transitive) to connect with a straight line or a curve
(transitive) an informal word for adjoin
join hands ⇒
- to hold one's own hands together
- (of two people) to hold each other's hands
- (usually followed by with) to work together in an enterprise or task

Etymology: 13th Century: from Old French joindre from Latin jungere to yoke

'join' also found in these entries (note: many are not synonyms or translations):

Collocations: a [neat, tight, loose, seamless] join, join a [club, gym, organization, team], the join fitted [tightly, closely], more...

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