FRO is a three letter word meaning 'from'. SINCE is a five letter word meaning 'from a particular point in time until now'. OF is a two letter word meaning 'belonging to or associated with'. ASOF is a four letter word meaning 'as of; from a particular point in time'. ATOZ is a four letter word meaning 'from beginning to end'. EVERSINCE is a nine letter word meaning 'from a particular point in time until now'. BEGINNINGTOEND is a fourteen letter phrase meaning 'from the start to the finish'. FLOORTOCEILING is a fourteen letter phrase meaning 'from the bottom to the top'. SUNRISETOSUNSET is a fifteen letter phrase meaning 'from the start of the day to the end of the day'.