noun:

• oni; ogre; demon
• spirit of a deceased person ➜ 亡魂
• ogre-like person (i.e. fierce, relentless, merciless, etc.) ［おに］
• it (in a game of tag, hide-and-seek, etc.) ［おに］ ➜ 鬼ごっこ【おにごっこ】
• Chinese "ghost" constellation (one of the 28 mansions) ［き］ - Astronomy term ➜ 二十八宿・朱雀【すざく】

prefix:

• very; extremely; super- ［おに］ - slang ➜ 超

noun:

• circle (sometimes used for zero) ➜ 丸【まる】
• 'correct' (when marking) ➜ 二重丸【にじゅうまる】
• symbol used as a placeholder (either because a number of other words could be used in that position, or because of censorship) ➜ 〇〇【まるまる】
• period; full stop ➜ 句点
• maru mark; semivoiced sound; p-sound ➜ 半濁点

noun / ~する noun:

• promise; agreement; arrangement; one's word; contract; pact; appointment; engagement; date
• convention; rule
• destiny; fate

noun / counter:

• stock; share

noun:

• stump - orig. meaning

noun / counter:

• root; rootstock
• strain (of bacteria, etc.)

noun / suffix noun:

• tradeable rank; goodwill

noun:

• one's forte ➜ お株

noun / ~する noun:

• investigation (e.g. into someone's guilt); questioning; pressing; hounding; pinning down
• catching up; overtaking

suffix noun:

• hut; house

noun:

• (in the ancient Chinese army) one day's march (approx. 12.2 km) - archaism

conjunction / expression:

• to make matters worse; besides; what's more; in addition; on top of that

noun:

• children's game similar to marbles, played with coin-shaped coloured glass ➜ 弾き【はじき】
• tiddlywink; counter

noun:

• happy life partnership; living faithfully together till death ［かいろうどうけつ］ - four character idiom
• Venus's flower basket (Euplectella aspergillum) - usually written using kana alone

noun / ~する noun:

• moving forward by sliding on one's knees (in the presence of high-ranking individuals)

noun:

• going according to one's wishes ➜ 不如意【ふにょい】
• ceremonial sceptre used by monks when reciting sutras (scepter) - Buddhism term

noun:

• offering of the year's new rice harvest (imperial festival, October 17)

noun:

• crime committed for fun; criminal who takes delight in people's reaction to his crimes

noun:

• Clusiaceae; Guttiferae; family of plants including St. John's worts and mangosteens

noun / ~する noun:

• beginning one's studies with something familiar and gradually increasing the depth of learning - four character idiom

noun:

• corner; nook; recess
• shadow; shade
• dark circles (e.g. around one's eyes)

noun:

• women's volunteer corps; groups of young female workers organized on Japanese territory during WWII

noun:

• Shudra; Sudra (member of India's worker caste)

noun:

• King's goanna (Varanus kingorum, species of small carnivorous monitor lizard native to the Australia)

noun:

• outset; beginning; starting (things) ➜ 手始め
• resuming work after the New Year's vacation ➜ 仕事始め

noun:

• room in Edo castle where the shogun's council of elders attended to governmental affairs

noun:

• koto erected in one's yard as decoration during the Festival to Plead for Skills - archaism ➜ 乞巧奠

noun:

• diagnostic sphygmopalpation (in traditional Chinese medicine); medical diagnosis performed by feeling one's pulse

noun:

• fine monk's robes worn by members of the imperial household, nobility, councilors (councillors), etc.

expression / noun:

• situation in which one can move neither forward nor backward; Benkei's last stand [literal] - idiom