ADJ

empty, full
You shouldn't drink wine on an empty stomach (= without eating food)
queasy, upset
She's been off work with an upset stomach
strong
You need a strong stomach to go on the giant roller coaster
weak

VERB + STOMACH

turn
The smell of the dead dog turned his stomach
settle
He had a hangover, so he ordered a sandwich to settle his stomach
settle in
A feeling of nausea settled in her stomach
pump
He had his stomach pumped after taking an overdose

STOMACH + VERB

churn, heave, lurch
My stomach lurched as another big wave hit the boat
rumble
tighten, turn (over), twist

STOMACH + NOUN

ache, bug, cancer, complaint, cramp, disorder, illness, pain, problem, ulcer, upset
lining, wall
acids, juices
contents
Human remains were found among the stomach contents of the shark
pump, tube

PREP

in the/your ~
enzymes in the stomach

PHRASES

butterflies in your stomach
I had butterflies in my stomach as I went to get my exam results
the pit of your stomach
I felt a sickening feeling in the pit of my stomach when I saw the ambulance

ADJ

firm, flat
bulging, fat, flabby, large, stout
bloated, swollen
bare

VERB + STOMACH

hold in, pull in, suck in
He sucked in his stomach as he walked past the girls
lie on
clutch, hold
'Call a doctor!' he said, clutching his stomach
pat, rub
' I'm eating for two now, ' she said, patting her stomach

STOMACH + VERB

protrude, stick out

STOMACH + NOUN

muscles
injury, strain, wound

PREP

on the/your ~
I lay on my stomach on the beach