To Thicken

1. (transitive) To make thicker (in the sense of wider).
2. (transitive) To make thicker (in the sense of more viscous).
3. (intransitive) To become thicker (in the sense of wider).
4. (intransitive) To become thicker (in the sense of more viscous).
5. (transitive) To strengthen; to confirm.
6. (transitive) To make more frequent.

Synonyms

• (make wider): broaden, enwiden; widen
• (make more viscous): condense, engross, inspissate
• (become wider): widen
• (become more viscous): inspissate
• (strengthen): build up, reinforce; strengthen
• (make more frequent):