心頭|しんとうshintou[0]heiban (flat)

1. nounheart; mind

• Synonym心こころNeutralThe most general word for the mind and heart, and it stands alone; 「心頭」 is written style, found mostly in phrases like 「怒り心頭に発する」 and 「心頭を去らない」.
• SynonymハートCasualA colloquial loanword, mostly for love and affection, also the hearts suit in cards, as in 「ハートを射止める」.
• Synonym胸襟きょうきんWrittenMostly in 「胸襟を開く」, opening up to someone; it stresses confiding in others.
• Related腹はらNeutralLiterally the belly; by extension one's true intentions or schemes, as in 「腹を割る」 — it stresses hidden plans.
• Related胸むねNeutralLiterally the chest; by extension the feelings held inside, as in 「胸が痛む」 — it stresses emotional stirrings.
• Related肝きもNeutralLiterally the liver; by extension courage or the crucial point, as in 「肝が据わる」 — not a general word for the inner heart.
• Related魂たましいNeutralThe soul or spirit, stressing life force and willpower; 「心頭」 refers only to what is in one's heart.
• Related内心ないしんNeutralOne's true inner thoughts; it works as a noun or adverb and is far more general than the written-style 「心頭」.
• Related心根こころねWrittenCenters on whether a person's nature or disposition is good or bad; 「心頭」 merely points to the inner heart.
• Related胸三寸むねさんずんNeutralAn idiom, mostly in 「胸三寸に納める」, for judgments one keeps to oneself without voicing them.
• Related胸懐きょうかいWrittenThe thoughts and aspirations held in one's bosom, as in 「胸懐を語る」; even more literary than 「心頭」.
• Related肝胆かんたんWrittenLiterally liver and gallbladder; by extension one's true heart, seen chiefly in set phrases like 「肝胆相照らす」.
• Related心肝しんかんWrittenLiterally heart and liver; by extension the bottom of one's heart, mostly in 「心肝に徹する」; rarely used alone.
• Related心胆しんたんWrittenMostly in 「心胆を寒からしめる」, making someone shudder; it concerns one's nerve rather than one's thoughts.
• Related胸臆きょうおくWrittenOne's inmost thoughts, mostly in 「胸臆を述べる」; a stiff, bookish expression.
• Related御心みこころFormalAn honorific for another person's wishes or God's will, as in 「神の御心」; its use differs entirely from 「心頭」.
• Related心髄しんずいWrittenMainly the core or essence of a thing; it only rarely means the depths of the heart.

In everyday speech use 「心」 or 「内心」; 「心頭」 is written style, seen mostly in phrases like 「怒り心頭に発する」 and 「心頭に浮かぶ」. The body-part words each live in their own idioms.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 心こころの中なか。心こころ。