[*] 107. Many nouns are found in the Plural in a peculiar sense:—
| aedēs , -is (F.), temple; | aedēs , -ium, house. |
| aqua (F.), water; | aquae, mineral springs, a watering-place. |
| auxilium (N.), help; | auxilia, auxiliaries. |
| bonum (N.), a good; | bona, goods, property. |
| carcer (M.), dungeon; | carcerēs, barriers (of race-course). |
| castrum (N.), fort; | castra, camp. |
| comitium (N.), place of assembly; | comitia, an election (town-meeting). |
| cōpia (F.), plenty; | cōpiae, stores, troops. |
| fidēs (F.), harp-string; | fidēs, lyre. |
| fīnis (M.), end; | fīnēs, bounds, territories. |
| fortūna (F.), fortune; | fortūnae, possessions. |
| grātia (F.), favor (rarely, thanks); | grātiae, thanks (also, the Graces). |
| hortus (M.), a gardon; | hortī, pleasure-grounds. |
| impedīmentum (N.) hindrance; | impedīmenta, baggage. |
| littera (F.), letter (of alphabet); | litterae, epistle, literature. |
| locus (M.), place [plural loca (N.)]; | locī,1 topics, places in books. |
| lūdus (M.), sport; | lūdī, public games. |
| mōs (M.), habit, custom; | mōrēs, character. |
| nātālis (M.), birthday; | nātālēs, descent, origin. |
| opera (F.), work; | operae, day-laborers (“hands”). |
| [ ops ,] opis (F.), help (§ 103. f. 1); | opēs, resources, wealth. |
| pars (F.), part; | partēs, part (on the stage), party. |
| rōstrum (N.), beak of a ship; | rōstra, speaker's platform. |
| sāl (M. or N.), salt; | salēs, witticisms. |
| tabella (F.), tablet; | tabellae, documents, records. |