a 軍歌 (gunka, “war song”)

お祖父さん, 御祖父さん, お爺さん, 御爺さん: grandfather, male senior citizen

to sing / to compose poetry / to recite poetry / to tweet, said of birds

a sea, an ocean / a lake / (figuratively) an object covering over a large area, as in 血の海 (chi no umi, “pool of blood”) or 火の海 (hi no umi, “sea of fire”)

浴室: bathroom

adverbial form of よい (yoi, “good”) / adverbial form of いい (ii, “good”) / 良く, 善く, 克く: good, well / 良く: frequently, often / 良く, 善く: having astonishing ability or guts / 能く: (literary) able to

well done; good job

(emphatic) Alternative form of よく (yoku)

(chiefly women's speech) first person singular pronoun: I, me

volitional form of 行く (iku, yuku) [godan]