- (nautical) The place where a distributary departs from the main stream.
- The boundary between two physically different materials, especially between conductors, semiconductors, or metals.
- (computing, Microsoft Windows) A kind of symbolic link to a directory.
- A place where two things meet, especially where two roads meet.
- (radio, television) A point in time between two unrelated consecutive broadcasts.
- The act of joining, or the state of being joined.