noun:

• stubble; unshaven face; beard one has because one is too lazy to shave; 5-o'clock shadow

noun / ~の noun:

• oxygen (O)

noun:

• optional (O) component - IT term

noun:

• ceremonial bonfire (seeing off the spirits on the final night of O-Bon)

noun:

• universal blood donor (i.e. having blood-type O negative); universal donor

noun:

• the "a" column of the Japanese syllabary table (a, i, u, e, o)

noun:

• chemical symbol (i.e. H for hydrogen, O for oxygen, etc.)

noun:

• elegant speech (esp. the use of the prefixes "o-" and "go- "); refined language; polite language ➜ 尊敬語・丁寧語

noun:

• top; summit; apex; peak
• twelve o'clock (usu. midnight) ［てっぺん］ - often in てっぺんを回る or てっぺん回る - slang
• top of one's head; top of a helmet; (top of) scalp; crown - esp. 頂辺 when in kanji - obscure term

numeric:

• four

noun:

• four years of age
• ten o'clock (old time system)
• cross grips - Sumo term ➜ 四つ身

noun:

• fireball; ball of fire
• will-o'-the-wisp; jack-o'-lantern

noun:

• (of Chinese) pronunciation of kanji with a medial between the initial consonant and center vowel
• (of Japanese) the long "o" vowel arising from combination of the "o" and "u" or "e" and "u" sounds

noun:

• fire of suspicious origin; suspected arson; mysterious fire ➜ 不審火
• will-o'-the-wisp

noun:

• (of Chinese) pronunciation of kanji without a medial between the initial consonant and center vowel
• (of Japanese) the long "o" vowel arising from combination of the "a" and "u" sounds

noun:

• between-meal snack
• mid-afternoon (around 3 o'clock) snack; afternoon refreshment; afternoon tea ➜ 八つ時

noun:

• tray
• family; household
• O-Bon; Bon Festival; Lantern Festival; Festival of the Dead - abbreviation ➜ 盂蘭盆

noun / ~する noun:

• cancellation; writing off (a debt)
• indicating a long sound in kana ➜ 長音【ちょうおん】

noun:

• tug o' war; tug of war

noun:

• a show; blood-stained mucus discharge that happens during pregnancy up to two weeks before delivery ➜ 破水
• signature mark (crest) used by members of the Imperial family to mark their belongings
• a sign (with honorific 'o') ➜ しるし

~する verb (irregular):

• to do; to carry out; to perform
• to cause to become; to make (into); to turn (into)
• to serve as; to act as; to work as
• to wear (clothes, a facial expression, etc.)
• to judge as being; to view as being; to think of as; to treat as; to use as - as 〜にする,〜とする
• to decide on; to choose - as 〜にする

~する verb (irregular) / intransitive verb:

• to be sensed (of a smell, noise, etc.) - as 〜がする
• to be (in a state, condition, etc.)
• to be worth; to cost
• to pass (of time); to elapse

~する verb (irregular) / transitive:

• to place, or raise, person A to a post or status B - as AをBにする
• to transform A to B; to make A into B; to exchange A for B - as AをBにする
• to make use of A for B; to view A as B; to handle A as if it were B - as AをBにする
• to feel A about B - as AをBにする

suffix / ~する verb (irregular):

• verbalizing suffix (applies to nouns noted in this dictionary with the part of speech "vs")

auxiliary verb / ~する verb (irregular):

• creates a humble verb (after a noun prefixed with "o" or "go") ➜ お願いします・御
• to be just about to; to be just starting to; to try to; to attempt to - as 〜うとする,〜ようとする ➜ とする