Learn That Word

Synonyms for Squealing (same or very similar meaning)

WordNet sense 1 (having or making a high-pitched sound such as that made by a mouse or a rusty hinge):
screechy, squeaky, screaky, squeaking

WordNet sense 2 (used of sounds and voices; high in pitch or frequency):
high, high-pitched

From the ODE community, based on WordNetadd/edit