noun:

• grandfather (may be used after name as honorific) - usu. 祖父ちゃん - familiar language ➜ 祖父さん
• male senior-citizen (may be used after name as honorific) - usu. 爺ちゃん ➜ 爺さん

noun:

• Korean mussel (Mytilus coruscus) - slang ➜ 貽貝
• silicone receptacle used for male masturbation

noun:

• careful and thorough person
• older male in an homosexual relationship ［ねんじゃ］ ➜ 若衆【わかしゅ】

noun:

• children - archaism
• child - archaism - honorific language
• young male prostitute - archaism
• prostitute - archaism - Kantō dialect

noun:

• assistant in a duel (e.g. a cockfight, poetry contest, etc.) (Heian period)
• older male in an homosexual relationship ➜ 念者

noun:

• flying fish roe ➜ 飛魚
• travelling male homosexual prostitute - archaism

noun:

• husband - polite language - Kansai dialect ➜ 旦那様
• male patron; male customer - polite language - Kansai dialect

noun:

• transvestite; drag queen - From English "new half"
• transwoman; male-to-female transsexual

noun:

• precocious girl - colloquialism - abbreviation ➜ ロリータ
• lolicon; male pedophile - colloquialism - abbreviation ➜ ロリコン

noun:

• cook; chef - From Dutch "kok"
• tap; spigot; faucet; cock
• cock (male fowl)
• cock (penis)

noun:

• host (of a party, summit, etc.)
• host (of male host club)

noun:

• wiles; trick; artifice; coquetry
• lover (male) (esp. of a prostitute) ➜ 間夫

noun:

• older brother - honorific language

pronoun:

• you (in ref. to male of greater age or status) - epistolary style - honorific language ➜ 小弟

noun:

• departure; setting off; start
• being used up; being consumed; being burnt out
• passage of time; lapse
• rehearsal - abbreviation ➜ 立ち稽古【たちげいこ】
• leading male role in kabuki - abbreviation ➜ 立ち役【たちやく】
• rising from a crouch to charge; initial charge; faceoff - abbreviation - Sumo term ➜ 立会い【たちあい】

prefix:

• verb prefix conveying emphasis and sometimes formality

noun:

• vital part (of the body); tender spot; weak point; vitals
• key point; essential point; crux (of a problem); heart (of a matter)
• male crotch (as a target in fighting) - colloquialism ➜ 金的

noun:

• female role (e.g. in film); female part
• occupation deemed fit for a woman
• passive role in a male homosexual relationship - slang

noun:

• brass button; golden button
• boy's school uniform - colloquialism
• male student - colloquialism

noun:

• daughter; young lady - Izu Oshima dialect
• young man; eldest son - Tōhoku, Hokkaidō dialect
• passive role in a male homosexual relationship - prison slang ➜ 女役

noun:

• men ➜ 女衆
• manservant ➜ 女衆
• male attendants to an actor

noun:

• curved nose
• crosspatch
• male salmon in the breeding season

noun:

• bull's-eye
• object of desire; most-coveted goal
• male crotch (as a target in fighting); the jewels (as in "kick him in ...") - colloquialism

noun:

• pot - polite language ➜ 釜
• volcanic crater
• (one's) buttocks
• male homosexual; effeminate man; male transvestite - often derog. - usually written using kana alone - colloquialism

noun / ~の noun:

• red and white; colours for festive or auspicious occasions (colors)

noun:

• two teams; two groups
• Red and White singing contest; annual contest between male and female popular singers on New Year's Eve (sponsored and broadcast by NHK) - abbreviation ➜ 紅白歌合戦【こうはくうたがっせん】

noun:

• hanger-on; dependent
• someone who is received coldly
• third, fourth, fifth, etc. sons (during the Edo period when only the oldest male could inherit an estate) - familiar language

godan ~く verb / transitive:

• to pull out; to draw out; to extract; to unplug; to weed
• to omit; to leave out; to go without; to skip

auxiliary verb / godan ~く verb:

• to do to the end; to carry through

godan ~く verb / transitive:

• to let out (e.g. air from a tyre); to drain (e.g. water from a bath); to empty
• to pick out; to choose; to select; to extract
• to pilfer; to steal
• to remove; to get rid of; to take out
• to pass; to overtake; to outstrip; to get ahead of
• to pierce; to break through; to go through - also written 貫く
• to cut out (a shape); to create (a pattern) by dying the surrounding area
• to seize; to capture; to reduce
• to scoop (a story)
• to take out (an opponent's stones; in go)

godan ~く verb:

• to masturbate (of a male); to ejaculate (while masturbating) - slang - vulgar
• to take (a photo); to record (video) - slang