noun, noun or particle that takes する, takes genitive case の

  1. confession, acknowledgement, acknowledgment.
  2. confession of love, professing one's feelings.
  3. confession of sins (e.g. the confessional).

Variations

Pronunciation Kanji Kana Is Common
告白 こくはく

Contained Kanji Breakdown

revelation, tell, inform
つ.げる コク い (4th, N3)
cow
ギュウ うし うじ (2nd, N4)
katakana no radical (no. 4)
ヘツ えい よう (Kentei 1)
dry, parch, ebb
ほ.す ひ.る ほし (6th, N2)
mouth
くち コウ ク (1st, N4)
white
しろ ハク しら- (1st, N5)
katakana no radical (no. 4)
ヘツ えい よう (Kentei 1)
day, sun, Japan
ひ ニチ ジツ (1st, N5)