| CONSTRAINS | • constrains v. Third-person singular simple present indicative form of constrain. • CONSTRAIN v. to force, compel. |
| INNERMOSTS | • innermosts n. Plural of innermost. • INNERMOST n. an innermost thing. |
| INSERTIONS | • insertions n. Plural of insertion. • INSERTION n. the act of inserting. |
| INTORSIONS | • intorsions n. Plural of intorsion. • INTORSION n. a twist, a twine, also INTORTION. |
| INTRUSIONS | • intrusions n. Plural of intrusion. • INTRUSION n. the act of intruding. |
| IRONSTONES | • ironstones n. Plural of ironstone. • IRONSTONE n. a hard, earthy ore of iron. |
| NONARTISTS | • nonartists n. Plural of nonartist. • NONARTIST n. one who is not an artist. |
| NONSTORIES | • nonstories n. Plural of nonstory. • NONSTORY n. an insignificant news story. |
| NOTORNISES | • NOTORNIS n. (Greek) a domestic-fowl-like bird of New Zealand, aka takahe. |
| SEROTONINS | • serotonins n. Plural of serotonin. • SEROTONIN n. a compound occurring in the brain, acting as a neurotransmitter. |
| STINKHORNS | • stinkhorns n. Plural of stinkhorn. • STINKHORN n. a kind of fungus of the genus Phallus, which emits a fetid odor. |
| STRONTIANS | • strontians n. Plural of strontian. • STRONTIAN n. an oxide of the metal strontium, also STRONTIA. |
| TENSIONERS | • tensioners n. Plural of tensioner. • TENSIONER n. something that tensions. |
| THORNINESS | • thorniness n. The property of being thorny (of having thorns or metaphorically being difficult). • THORNINESS n. the state of being thorny. |
| TRANSONICS | • transonics n. The study of transonic travel. • TRANSONICS n. the range of speeds close to that sound. |
| TRANSSONIC | • transsonic adj. Alternative form of transonic. • TRANSSONIC adj. relating to the range of speeds close to that sound. |