expression:

• When in Rome, do as the Romans do - proverb ➜ 郷に入っては郷に従え

expression:

• in succession; one after another

expression / ~する verb (irregular):

• to fall in love

noun:

• brother-in-law; stepbrother; sworn brother

noun:

• dictionary giving etymology and describing historical changes in meaning and usage

noun:

• slapping hands in front of the opponent's face to confuse him - Sumo term

noun:

• legendary military invasion of Korea in the 3rd century - archaism

noun:

• student who can't keep up in school - sensitive

noun:

• two people riding in a palanquin together - archaism

noun:

• boy or doll dressed in ancient Chinese clothes
• hairstyle inspired by such a doll (esp. for female children) (Edo period)

expression:

• burying one's head in the sand (while leaving other parts of one's body exposed); exposing one's weak point while attempting to protect oneself; hiding one's head without hiding one's bottom [literal] - idiom

expression / adverb:

• in any case; anyhow; anyway; at any rate; at least

ichidan verb / transitive:

• to invite in; to usher in

godan ~る verb:

• to do in place of or on behalf of (someone)

godan ~む verb / transitive:

• to place an obnoxious person in an out-of-the-way post to be rid of him or her

expression / noun:

• the harmonizing, mentally and physically, of two parties engaged in an activity; singing from the same hymn-sheet; dancing to the same beat - idiom

noun / ~する noun:

• success in life; advancement in life; rising in the world - four character idiom

noun:

• built-in - IT term

adverb:

• in all ages; over the ages; forever and ever ➜ いつの時代にも

expression / ~する verb (irregular):

• prescribed in the preceding paragraph

noun / ~する noun:

• dying in vain - sensitive

expression:

• in order to be(come)... ➜ となる
• since it amounts to...
• since it is advantageous to...

noun:

• being unfit for duty in the former Japanese military (due to failing the conscription physical); person who is unfit for military duty

noun / ~する noun:

• going in the opposite direction
• going against the wind
• running or operating a machine in reverse (such as an electric motor)

noun:

• three wins in a row