Maksud perkataan underside dalam bahasa Melayu

Apakah maksud underside dalam bahasa Inggeris? Terokai maksud, sebutan dan penggunaan khusus perkataan ini bersama Lingoland

underside

US /ˈʌn.dɚ.saɪd/
UK /ˈʌn.də.saɪd/

Kata Nama

bahagian bawah

the side of something that is usually closest to the ground:

Contoh:
The car had turned over in the ditch, and its underside was covered in oil and mud.