Reverend Mother 
noun
The title of the Mother Superior of a convent.At her convent grammar school the Reverend Mother was so pathologically anti-English that she tore posters representing events in English history from the walls and stamped upon them....
- The Reverend Mother and my beloved Sister Agnes handled my constant worry about Mother's recovery gently but firmly.
- Sarah Dunne, the nurse in charge was referred to as the Reverend Mother, and Vera Fogarty in Therapy was Sister Veronica.
- time-saving
- timescale
- time scheme
- time series
- time-served
- time-server
- time server
- time service
- time-serving
- timeshare
- time-sharer
- time-sharing
- time sheet
- time-shift
- time shutter
- time sight
- time signal
- time-signaling
- time-signalling
- time signature
- time sink
- time slice
- time-slicing
- time-slip
- time slot