| yak N gruntbovoPIV |
| yang N jangoSEK,Ĉ |
| Yangtze Rive N Rivero BluaPIV, JangzioPIV |
| yawn vi oscedi; n oscedo |
| yay! interj hura!Ak, hu ha!Z |
| yeast N gisto |
| yeast extract N gistaĵoPIV, gistopulvoroPIV |
| yeast infection N kandidozoPIV |
| yeast-fermented dough N fermentaĵoPIV |
| yellow adj flava; n flavo |
| Yellow Birch N flava betuloSEK |
| Yellow River N Rivero FlavaPIV |
| yellow safeword N avertvortokri |
| yellow turnip N brasiknapoJW,Kr |
| Yemen N JemenoBW |
| yen N enoPIV |
| yikes! interj oj! |
| yin N jinoSEK,Ĉ |
| yoga N jogoPIV |
| yoghurt N jogurtoPIV |
| yogurt N jogurtoPIV |
| Yoruba N la joruba (lingvo)BW |
| you are welcome phras ne dankinde; bonvenon! |
| you can't judge a book by its cover phras valoras ne la vesto, valoras la enestoVIE; kapuĉo monaĥon ne farasVIE |
| you're fired! phras mi tuj maldungas vin!LB |
| you're welcome phras ne dankinde; bonvenon! |
| yuck! interj fi!Z, pu!PIV |
| Yukon Territory N JukonteritorioBW |
| Yunnan N JunanoBW |