the part of the body of a human or animal between the chest and the pelvis, including the belly and flanks

the abdominal cavity

diarrhea; to have the runs

pain in the abdominal region; bellyache or stomach pain

an empty stomach

the inland region that supports or is served by a port or urban center

to speak from the heart; to be completely open and sincere

peritoneum (anatomy)

the region of the body below the navel; the underbelly

(medicine) ascites; ascitic fluid; hydroperitoneum

a trusted aide or close confidant

abdominal muscle

cesarean birth

groin (anatomy)

filled with something, such as knowledge, talent, or strong emotions

to treat someone with absolute confidence and sincerity; to speak from the bottom of one's heart

to split one's sides laughing

to draw in one's belly; to tighten the abdominal muscles

a plan, project, or idea that fails or is abandoned before it can be implemented

To roar with laughter; to split one's sides laughing; (lit.) to hold one's belly with both hands.

having a large, protruding belly; big-bellied

to eat one's fill

to be attacked from both the front and the rear

Honeyed words but a dagger in the heart; hypocritical and treacherous.

rectus abdominis muscle (aka abdominals or abs)

A major trouble or serious danger hidden within; literally, a calamity within one's bosom.

possessing vast knowledge, talent, and wisdom, particularly in matters of statecraft, governance, or administration

desire for good food

not having enough food to fill the stomach; living in extreme poverty and hunger

mental outline

having a belly full of complaints; filled with grievances or constant dissatisfaction

(fig.) food and drink; one's appetite

to propose the future marriage of two unborn babies on condition that one turns out to be a boy and the other a girl (idiom)

a band worn around the belly for support or protection

the pair of fins on the lower or ventral side of a fish's body, used for stability and steering

to perish in water, especially at sea; literally to be buried in the bellies of fish

main vowel in a diphthong or syllable nucleus

To laugh until it hurts; to laugh heartily.

crunch (physical exercise)

To sacrifice one's life or well-being for material gain; wasting a lot of effort on trivialities.

six pack (abdominal muscles)

the fleshy underside of the fingertip; finger pad

hara-kiri; ritual suicide by disembowelment

(bird species of China) black-headed shrike-babbler (Pteruthius rufiventer)

(bird species of China) rufous-bellied eagle (Lophotriorchis kienerii)

Chinese vivid niltava (Niltava oatesi), a bird species found in China

cesarean section