| Word | Definitions | Synonyms |
|---|---|---|
| infuriate | (verb) make furious | Synonyms: exasperate, incense |
| infuscate | (verb) darken with a brownish tinge, as of insect wings | - |
| infuse | (verb) introduce into the body through a vein, for therapeutic purposes | - |
| (verb) let sit in a liquid to extract a flavor or to cleanse | Synonyms: steep | |
| (verb) fill, as with a certain quality | Synonyms: impregnate, instill, tincture | |
| (verb) undergo the process of infusion | - | |
| (verb) teach and impress by frequent repetitions or admonitions | Synonyms: inculcate, instill |