polynya

openness, not being closed / openness, allowing free entry and exit / openness, frankness

open a door etc. / open, allow freedom of entry and exit / be open and frank

body of water

ice (frozen water) / Short for 氷水 (kōrimizu): ice water; water filled with ice / Short for 氷襲 (kōrigasane): layered clothing with the front shining white and plain white at the back

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”)

a surname / a female given name

hail (precipitated ice) / ice (frozen water)

ice / freeze, congeal / icy, cold

ice; freeze