noun:

• politician (esp. one who works only for their own personal gain) - derogatory term

noun:

• decorating the alcove of a tea room with a hanging scroll and flowers (in more formal tea ceremonies, during only the first and second half respectively)
• style of decorating a traditional Japanese room (esp. a study) in which incense, a pair of vases and a pair of candlesticks are placed on a table in front of a trio of hanging scrolls - orig. meaning

noun:

• Cetorhinus (sole genus of the only species of basking shark in the family Cetorhinidae)

noun:

• copper shark (Carcharhinus brachyurus, only member of Carcharhinus found mostly at temperate latitudes); bronze whaler; narrowtooth shark ➜ くろへりめじろ

noun:

• Loxodon (genus containing the sliteye shark as its only member in the family Carcharhinidae)

noun:

• small amount of silk (i.e. only one foot of cloth)
• unimportant painting; trivial work of art

noun or verb acting prenominally:

• one-coin (i.e. able to be paid for with only one coin, esp. a 500-yen coin, sometimes a 100-yen coin); costing 500 yen; costing 100 yen

noun:

• darling (only of a woman); dear; honey; my betrothed - archaism - familiar language
• one's sister - archaism
• friend - archaism - familiar language - female language

noun:

• one's (only) good suit (or kimono)

expression:

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

noun:

• Nasolamia (genus of requiem shark in the family Carcharhinidae whose only member is the whitenose shark)

noun:

• foreign ship (originally only of Dutch ships, but later referring to all foreign ships) - archaism - colloquialism

noun:

• secretly slitting one's belly (and only eventually revealing one's mortal wound) (in kabuki, bunraku, etc.)

noun:

• (being separated only by a) narrow strip of water; narrow strait (channel, river) - four character idiom

noun:

• ignorance of Jōdo Shinshū practitioners (who only chant the Namu Amida Butsu and have little knowledge of other parts of Buddhism) - derogatory term

noun:

• correspondence theory (theory that a proposition is true if and only if it corresponds to the facts) ➜ 整合説

noun:

• black-barred surgeonfish (Acanthurus polyzona, species of tang known only from Mauritius, Réunion, Madagascar, and the Comoro Islands)

noun:

• high-quality buckwheat flour (made only using the center of the grain)

noun:

• Mitsukurina (genus of only living species of goblin shark in the family Mitsukurinidae)

noun:

• speartooth shark (Glyphis glyphis, species of fresh water requiem shark from the western Pacific known only from the original description of 1839)

noun:

• keitai-mail friend (someone one keeps in touch with only by typing messages with one's thumb) - obscure term - slang ➜ 親指

noun / ~する noun:

• separating words in Japanese with spaces (e.g. in kana-only books for children) - Linguistics term

noun:

• (wearing only) one pair of underpants

noun:

• Eucommiaceae (monotypic plant family containing only the hardy rubber tree) ➜ 杜仲

adverb / ~と adverb:

• swaying (only once, in a large, slow motion)
• relaxedly