Home / Synonyms / combine vs joinNo. 0211

combine vs join

Combine and join both bring things together, with a difference in how. Combine is to bring several separate things together into one set. Join is to connect two things directly, or to become a member of a group. Combine gathers things into a whole; join makes a direct connection between two of them.

Quick rule
connect two things directly, or become a member→join
bring several separate things together into one set→combine
combine

Fig. 1a — combine.

/kəmˈbaɪn//kəmˈbaɪn/·verb, noun
vs
join

Fig. 1b — join.

/dʒɔɪn//dʒɔɪn/·verb

Both bring things together, but join connects while combine gathers into one. Join is the plain, everyday word for linking two things or becoming part of a group — you join two pipes, join a club. Combine, from com- 'together', brings several separate things into a single set. You join two pipes end to end; you combine several ingredients in a bowl. One makes a direct connection between two things; the other gathers many into one.

01What each means

combine

To combine is to bring two or more things together so they work or count as one — combine ingredients, combine forces, combine two datasets. From the Latin com- 'together' and bini 'two by two'. What is combined is pooled for a purpose, but the parts often stay distinguishable, unlike things that merge or fuse into a single body. As a noun, with the stress moved to the front, a combine is the farm machine that combines reaping, threshing, and gathering into one pass.

join

To join is to connect two things directly, or to become part of a group — join two pipes end to end, join a club, join hands. From the Latin iungere, 'to yoke'. At its simplest it makes one continuous thing out of two: where two roads meet, they can be joined into a single route. With people it means to enter or take up with — you join a team, join the queue, join forces. Unlike things that merge into one body, joined parts keep their own ends; they are linked, not dissolved.

02At a glance
combinejoin
Meaningbring several together into one setconnect directly; become a member
How manyusually severalusually two, connected
Stressesgathering into one wholea direct connection
Often withingredients, forces, ideas, datapipes, hands, a club, a queue
Nouncombinationa join / junction / joining
ExampleCombine the ingredients.Join the two pipes.
03How to remember

Ask whether two things are being connected or several gathered. Join makes a direct link between two — a fresh link locking two chains into one run. Combine gathers several into one set — berries and oats folded into a bowl. If two things are connected directly, that is join; if several things are brought together into one, that is combine.

04In use

combine

  • iCombine the flour, sugar and butter.
  • iiThe plan combines two very different ideas.
  • iiiSeveral small firms combined for the bid.

join

  • iJoin the two pipes with a tight coupling.
  • iiShe joined the tennis club last spring.
  • iiiA new bridge joins the two banks.

Join stresses a direct connection between two things, or becoming a member of a group; combine stresses gathering several into one set. Join also means to sign up (join a team), a sense combine lacks. Where they overlap, join connects two things while combine gathers many.

05Asked
What is the difference between combine and join?
Combine is to bring several separate things together into one set, while join is to connect two things directly, or to become a member of a group. Combine gathers things into a whole; join makes a direct connection between two of them. In the scenes above, berries and oats are folded into one bowl, while a fresh link connects two chains into a single unbroken run.
Can combine and join be used interchangeably?
Sometimes, where two things come together — you might combine or join two sections. But join stresses a direct connection between two things and can mean becoming a member, while combine stresses gathering several into one set. You join a club; you combine ingredients. The number and the kind of togetherness usually decide.
What does join mean as becoming a member?
To join a club, team, party or company is to become one of its members — to sign up and belong. It is one of join's most common senses and is entirely social. Combine has no such meaning; you cannot 'combine a club'. Where joining brings a person into a group, combining brings separate things together into one set.
Which prepositions go with combine and join?
Combine takes with (combine cream with sugar) or a plural object alone (combine the ingredients). Join often takes with (join one pipe with another), to (join one part to another) or a direct object (join the club, join hands). So you combine one thing with another into a set, while one thing is joined to or with another.
What does join mean in databases?
In databases, a join combines rows from two tables based on a shared column — an inner join, an outer join — bringing related data together into one result. The idea is close to combine, but the technical term is join. Combine is looser in computing, often meaning to bring data together without the precise matching a database join performs.
Is join more informal than combine?
Join is plainer and more everyday, at home in speech and every register — join a queue, join hands, join a club. Combine is register-neutral and slightly more formal, common in recipes, science and business (combine the reagents, a combination of factors). In an essay about bringing several elements into one, combine often reads as the more precise choice.
What are the noun forms of combine and join?
Combination for combine. Join gives several nouns — a join or joint for where two things meet, a junction for where roads or lines connect, and joining for the act. A combination names several things brought into one set; the join-nouns name a single connection between two things.
Related
amalgamate vs combineamalgamate vs joinassemble vs combineassemble vs join
combine — full entryjoin — full entry← All synonyms