800 number
noun[C]
uk/ˌeɪtˈhʌn.drəd ˌnʌm.bər/us/ˌeɪtˈhʌn.drəd ˌnʌm.bɚ/in the US, afreephonenumberthatbeginswith 800,providedbycompaniesor otherorganizationsofferingadviceorinformation
（美国的）800号码（公司企业或其他提供咨询或信息服务的机构开通的以800开头的免费电话号码）Communications - by telephone
- 3G
- 4G
- 5G
- aeroplane mode
- airplane mode
- area code
- autodial
- dialling tone
- Directory Enquiries
- helpline
- off the hookidiom
- phone mast
- pick
- picksomeone/somethingup
- pocket dial
- prank caller
- ring
- roam
- telecoms
- telephone