dungarees /ˌdʌŋ.ɡəˈriːz/ noun [plural]
F0 UK (US overalls) a pair of trousers with an extra piece of cloth that covers the chest and is held in place by a strap over each shoulder
See picture: dungarees 
Thesaurus+: ↑Trousers
F0 US OLD-FASHIONED trousers made of denim (= strong, blue cotton cloth)
Thesaurus+: ↑Trousers