выпячиваться angolul

billow [billowed, billowing, billows]▼(to swell or bulge)
verb
[UK: ˈbɪ.ləʊ] [US: ˈbɪlo.ʊ]

bulge [bulged, bulging, bulges]▼(to stick out from)
verb
[UK: bʌldʒ] [US: ˈbəldʒ]