Requiescat in pace is Latin for May he/she rest in peace
Requiescat in pace; R.I.P. May he [or she] rest in peace. This R.I.P. symbol is used on tombstones, cards of mourning, etc. The plural form is Requiescant in pace, 'May they rest in peace.' The abbreviation, R.I.P. is used for both the singular and the plural applications.requiescat in pace (R.I.P.)
(R.I.P.) rest in peace (singular) - the plural (may they rest in peace) is 'requiescant in pace'