noun:

• mass start (esp. in speed skating) - Sports term

noun / ~する noun:

• female-to-male genderswap (in fan art and fan fiction) - slang ➜ 女体化

~と adverb:

• gently and clearly shining (like the sun in springtime) - onomatopoeia

noun:

• Holy Alliance (of Russia, Austria and Prussia in 1815)

noun:

• secondary mirror (in a reflecting telescope)

noun:

• (in a) preaching tone - four character idiom

noun:

• scat (in jazz); scat-singing - Music term

noun / ~する noun:

• first ride (in a new vehicle, in the new year, etc.)

noun:

• base-fare zone; starting fare; base fare

noun / ~する noun:

• lengthening a vowel (e.g. as in Kansai dialect) - Linguistics term ➜ 短呼

noun:

• long sound (esp. long vowel) - Linguistics term

noun:

• hyperuricemia (increased levels of uric acid in the blood)

noun:

• anticipation of a fall (in prices); prediction of a price drop

noun:

• day of the ox (esp. in midsummer or midwinter) ➜ 土用の丑の日

noun:

• Nordic event (in skiing)

noun:

• New Wave (esp. in cinema) - From French "Nouvelle Vague"

noun:

• unknown (e.g. in an equation) - Mathematics term
• element (of a set) - Mathematics term
• yuan (monetary unit of China)
• Yuan dynasty (China)

noun:

• useless card (in karuta); worthless card ➜ カルタ
• card only worth 1 point (in hanafuda) ➜ 花札

noun:

• Tochū tea (high in minerals and reputed to be beneficial for weight loss and in cases of high blood pressure) ➜ 杜仲

noun:

• bullseye pygmy goby (Trimma tauroculum, found in Palau)

noun:

• virtual space (e.g. in computer graphics) - IT term

noun:

• Ixeris dentata var. alpicola (mountain flower in the dandelion family)

noun:

• Constitutional Democratic Party of Japan (formed in 2017)

noun / ~する noun:

• depalatalization (e.g.. dropping small kana in borrowing foreign words into Japanese); depalatalisation - e.g. conversion of きゃ to か - obscure term - Linguistics term ➜ 拗音【ようおん】

noun:

• countryside people (in town); visitor from the country; out-of-towner; country bumpkin (visiting the big city); yokel

noun:

• Minister of the Left (official in Nara and Heian periods)

noun:

• first year of the sexagenary cycle (in Onmyōdō) ➜ 甲子・三革