noun:

• statute of limitations; lapse of rights after a period of time; prescription (including acquisitive and extinctive prescription)
• becoming invalid or void after a set time
• ageing; aging - Chemistry term ➜ 時効硬化

expression:

• always listen to your parents; always value your parents' advice; not even one in a thousand of a parents' opinion or an eggplant flower are in vain [literal] - proverb

noun:

• face
• mask; face guard
• (in kendo) striking the head - Martial Arts term
• surface (esp. a geometrical surface)
• page

noun / suffix:

• aspect; facet; side
• chamfer

counter:

• counter for broad, flat objects, levels or stages, e.g. in a video game

noun:

• yellowtail surgeonfish (Prionurus punctatus, species of Eastern Central Pacific tang found in reefs from the Gulf of California to El Salvador)

noun:

• mamba (snake of the genus Dendroaspis)
• yamanba; manba; girl or young woman adhering to a fashion trend often characterized by extremely gaudy and colourful facial make up, heavily tanned skin and hair dyed in a bright hue - abbreviation ➜ ヤマンバ

noun:

• the opening(s) (e.g. in a game of go or chess)

noun:

• nuclear fission
• karyokinesis (division of a cell nucleus during mitosis or meiosis)

noun / ~する noun:

• leaving the mound; being knocked out - Baseball term ➜ 登板
• resigning from a role or position

noun / ~する noun:

• washing a kimono (or futon, etc.) without taking it apart; laundering whole ➜ 解き洗い

noun:

• ballast; crushed stone, gravel, etc. used on a roadbed or railway track - abbreviation ➜ バラスト

noun:

• tiqin (2 or 4-stringed Chinese instrument played with a bow)
• violin ➜ バイオリン

adjectival noun / noun:

• becoming an adult or full-fledged member of (a) society ➜ 一人前

noun / ~する noun:

• adaptation (e.g. of a poem or novel); rewriting; recasting; modification; rehashing - four character idiom

noun:

• first meal (including meat or fish) taken after a period of abstinence

noun:

• man who marries a wealthy or upwardly-mobile woman; (male) gold digger

noun:

• flowers or flower arrangements for a butsudan (household Buddhist altar)

expression:

• cool! (only when said or written in a questioning tone); incredible; unbelievable

noun:

• local site; location for making or filming a movie

noun:

• identity or background check (often to see if someone is a burakumin) - colloquialism

noun / ~の noun:

• eponym (word derived from the name of a place or person)

noun:

• allowing oneself meat, fish or alcohol after a period of abstaining

godan ~る verb:

• to perform a small motion repetitively (e.g. picking or poking something)

noun:

• wooden clappers (signalling the beginning or end of a performance)

noun:

• uroboros; ouroboros (image of a serpent or dragon swallowing its own tail)

noun:

• map (or diagram, etc.) folded with a cover on each side - obscure term