a black rhinoceros

a seed / a pit or stone in a fruit / a gamete (reproductive cell such as a spermatozoan or egg) / a lineage, bloodline / an origin, cause / the materials or ingredients from which something is made

to go extinct; to be annihilated; to be eliminated

extinction; annihilation; elimination

misgivings, unease, apprehension

have misgivings, be apprehensive, fear, be concerned, feel uneasy

one thing

rhinoceros

a rhinoceros

black (color) / (go) a black stone; the person who plays black stones / a 女房詞 (nyōbō kotoba, “woman's word”) for 鍋 (nabe, “pot, pan”) or 釜 (kama, “pot, kettle”)