The word "disjoin" means to separate or detach things that are together. Its antonyms are various words that describe the opposite of disjoining, that is, connecting, joining, coupling, integrating, or uniting. For example, the word "combine" means to merge or blend things that were formerly separate. Similarly, the word "attach" means to connect or fasten things together, while the word "unite" means to bring together in a common purpose or goal. The antonym of "disjoin" can also be "link," "integrate," "interconnect," "interlink," "interlock," "interweave," and "entwine," all of which describe the action of bringing separate things together to form a cohesive whole.