| Word | Definitions | Synonyms |
|---|---|---|
| between | (adverb) in between | Synonyms: 'tween |
| (adverb) in the interval | Synonyms: betwixt | |
| betweenbrain | (noun) the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon | Synonyms: diencephalon, interbrain, thalmencephalon |
| betwixt | (adverb) in the interval | Synonyms: between |