(idiomatic) Of two or more things, having little difference of any significance between them.

A large amount of. / (in combinations such as 'as much', 'this much') Used to indicate, demonstrate or compare the quantity of something. / (now archaic or nonstandard) A great number of; many (people).

(obsolete) Large, great. / (obsolete) Long in duration.

To a great extent. / Often; frequently. / (in combinations such as 'as much', 'this much') Used to indicate or compare extent. / (obsolete) Almost.

A large amount or great extent.

Large size or bulk; bigness; size; magnitude (large or small). / Greatness in quantity, number, amount, or degree.

plural of muchness

precisely that / Used other than figuratively or idiomatically: see as, much.

Practically, just as, no less than; indicates an action tantamount to, but not identical to, the action described. / So much as, even.

Used other than figuratively or idiomatically: see as, much. / Used to say that two things are equal in amount or degree / Used to say that an amount is as large as another amount