to swell /swel/ /swel/
to distend /dɪˈstɛnd/ /dɪsˈtɛnd/
to become swollen
to expand /ɪkˈspænd/ /ɪksˈpænd/
to bulge /bʌlʤ/ /bʌlʤ/
to inflate /ɪnˈfleɪt/ /ɪnˈfleɪt/