対語: a compound formed with characters of opposite meanings; an antonym

追跡: chase, pursuit; tracking, following / 追惜: a grudge held against someone even after they have died

追跡: to chase, to pursue; to track, to follow / 追惜: to hold a grudge against someone even after they have died

左右一対: symmetrical pair, left and right pair

The hiragana syllable す (su). Its equivalent in katakana is ス (su). It is the thirteenth syllable in the gojūon order; its position is さ行う段 (sa-gyō u-dan, “row sa, section u”).

nest, hive, den

vinegar (condiment)

sandbank, sandbar

(archaic) to do / (archaic) to cause, become

(chiefly dialectal and colloquial) Alternative form of せる (seru, “causative suffix”)