noun

  1. abdominal muscles, abs.

noun, takes する, intransitive verb

Abbreviation.
  1. sit-up (exercise).

Variations

Pronunciation Kanji Kana Is Common
腹筋 ふっきん
腹筋 ふくきん
腹筋 はらすじ

Contained Kanji Breakdown

abdomen, belly, stomach
はら フク (6th, N3)
month, moon
つき ゲツ ガツ (1st, N5)
return, repeat, repeatedly
person, (人 variant)
day, sun, Japan
ひ にっ ニチ (1st, N5)
late, delayed, winter radical (no. 34)
チ しゅう (Kentei 1)
muscle, sinew, tendon
すじ キン (6th, N1)
bamboo
たけ チク たか (1st, N2)
individual, (個 variant)
knife, wrapping enclosure(勹) variant
feathered stick, barb radical (no. 6)
ケツ かぎ (Kentei 1)
rib
ロク あばら (Kentei Pre-1)
month, moon
つき ゲツ ガツ (1st, N5)
power, strength, strong
リョク ちから リキ (1st, N4)