noun:

• a large number of ships sailing in a long chain-like formation - four character idiom

noun / ~する noun:

• author directing or producing his or her own play (film) - four character idiom
• staging oneself for effect; presenting oneself in a favorable light - four character idiom

noun:

• painting of a scene in Hell; a picture of Hell - four character idiom

expression:

• The time has come (for, to, when...); Now is the time - four character idiom

noun / ~する noun / ~の noun:

• self-development; self-enlightenment - four character idiom

noun / ~する noun:

• self-actualization; self-fulfillment; self-realization - four character idiom

noun / ~する noun:

• narcissism; self-absorption; self-intoxication - four character idiom

noun / ~する noun:

• self-contradiction; self-inconsistency - four character idiom

noun:

• living only for one's work; a life with no other interest than one's work - four character idiom

noun:

• self-aggrandizement; self-glorification; something becoming large by feeding upon itself - four character idiom

noun:

• self-protection; self-preservation - four character idiom

noun / ~する noun / ~の noun:

• self-congratulation - four character idiom

noun / ~する noun:

• self-restraint; self-control; self-repression; abstinence; self-inhibition; autogenic inhibition; autogenous suppression - four character idiom

noun / ~する noun:

• performing a part in one's own play; playing a musical piece that one has written - four character idiom
• doing everything by oneself (from preparation to execution)
• put-up job; charade
• sock-puppeting (i.e. pretending to be more than one person on the Internet)

noun:

• heaps of bodies and streams of blood; fierce battle - four character idiom

noun:

• one's support (power) base; the base of one's support in an electorate - four character idiom

noun:

• the (one's) whole body - four character idiom

noun:

• treacherous friend; snake in one's bosom; treacherous insider - four character idiom

noun / ~する noun:

• generation-to-generation instruction from master to disciple - four character idiom

noun / adjectival noun:

• wise and clear-sighted; intelligent and astute by nature; blessed with talents - four character idiom

expression:

• At forty, one has no doubts. (Confucius) - four character idiom

noun / adjectival noun / ~の noun:

• utmost purity - four character idiom

noun / adjectival noun / ~の noun:

• utmost purity - four character idiom

noun:

• unprecedented in history; unheard-of; epoch-making - four character idiom

noun / ~する noun:

• inquiry; enquiry; investigation; (police) interview; questioning (e.g. witness, suspect); hearing - four character idiom