Direct Opposites:
* Separate: To physically or conceptually divide things.
* Isolate: To place something alone or apart from others.
* Distinguish: To differentiate between things.
* Disassociate: To disconnect or break the connection between things.
Less Direct Opposites:
* Harmonize: To combine elements in a way that creates a pleasing or unified whole.
* Integrate: To combine elements into a complete and functional unit.
* Unify: To bring things together into a single entity.
* Merge: To combine two things into one.
The best antonym for "juxtapose" depends on the specific context.