مَعَاشٌ
and
مَعِيشٌ may be used as substantives as well as inf. ns., like مَعَابٌ and مَعِيبٌ; (S, O, TA;) and signify, like مَعِيشَةٌ, That whereby one lives: or that [place and time] in which one lives: (TA:) [or rather, they have both these significations; but معاش has generally the latter. whereas معيشة, q. v., and معيش, are generally used in the former sense, or one similar to it:] مَعَاشٌ also signifies the place of subsistence; or the known, or usual, place thereof: and the time wherein one seeks sustenance. (TA.) Thus, (TA,) الأَرْضُ
مَعَاشُ الخَلْقِ [The earth is the place of subsistence of mankind, or of the created beings]. (A, O, TA.) And النَّهَارُ مَعَاشٌ
The day is the time for seeking sustenance: as in the Qur'an, 78:11. (O, TA.) See also مَعِيشَةٌ, in two places.