[generally thus in all cases] is a word, or noun, (
S,
K,) or particle, (
K,) denoting concomitance, (
S,
K,) &c. (
K.) It is said to denote the commencement of concomitance, though this is not invariably the case. (MF and TA, voce
فِى.)
جِيءْتُ مَعَ العَصْرِ means
عِنْدَ العَصْرِ. (Mughnee.)