| Word | Definitions | Synonyms |
|---|---|---|
| extra | (adjective) further or added | Synonyms: additional |
| (adjective) more than is needed, desired, or required | Synonyms: excess, redundant, spare, supererogatory, superfluous, supernumerary, surplus | |
| (adjective) added to a regular schedule | Synonyms: special | |
| ultra | (adjective) (used of opinions and actions) far beyond the norm | Synonyms: extremist, radical |