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[2x]
: MÜ Mä Mæ Mé Mê Mö Mœ M- M. M1 M2 M3 M< Ma Mb Mc Md Me Mf Mg Mh Mi Mk Ml Mm Mn Mo Mp Mr Ms Mt Mu Mv Mw Mx My
man-hour
CIDE DICTIONARY
man-hour, n.
The quantity of work which one person can perform in one hour; -- often an estimate made for the purpose of deciding whether to undertake a project, and sometimes used in accounting; as, it will take a hundred man-hours to write the program. [PJC]
For further exploring for "man-hour" in Webster Dictionary Online