The abdominal muscles.
More example sentences
- This exercise works the hip flexors, lower abs and thighs, and increases kick strength.
- She is into animal rights, she says, and a vegan and is pretty fit herself, she adds, demonstrating flexed forearms, biceps and abs.
- Tighten your abs and glutes, keeping your pelvis down, and lift one leg off the floor.
Definition of abs in:
- The British & World English dictionary