| Word | Definitions | Synonyms |
|---|---|---|
| erect | (adjective) upright in position or posture | Synonyms: upright, vertical |
| (adjective) of sexual organs; stiff and rigid | Synonyms: tumid | |
| erectile | (adjective) capable of being raised to an upright position | - |
| (adjective) filled with vascular sinuses and capable of becoming distended and rigid as the result of being filled with blood | Synonyms: cavernous |