- banjo
- bravo
- burro
- cantocasino
- chromo
- contralto
- duodecimo
- dynamo
- halo[11]
- junto
- lasso
- memento[11]
- octavo
- piano
- proviso
- quarto
- solo
- soprano
- stiletto
- torso
- tyro
- zero[11]
73. In some nouns the addition of the plural ending alters the spelling and even the sound of the singular form.
1. Nouns ending in y preceded by a consonant change y to i and add es in the plural.
Examples:
- sky, skies;
- fly, flies;
- country, countries;
- berry, berries.
- valley, valleys;
- chimney, chimneys;
- monkey, monkeys;
- boy, boys;
- day, days.)
Most proper names ending in y, however, take the plural in s.
Examples:
- Mary, Marys;
- Murphy, Murphys;
- Daly, Dalys;
- Rowley, Rowleys;
- May, Mays.
2. Some nouns ending in f or fe, change the f to v and add es or s.