Pretty nearly, approximately. Chiefly in expressions denoting similarity, as much as, †much at one, much of an age, much of a size, much of a piece…

With a close degree of agreement or similarity.

Pretty much, pretty well; greatly, to a considerable degree; nearly, almost.

Nearly, almost, all but. See also well-nigh, adv. nigh on (also nigh about, †nigh but, nigh on to, †nigh than, nigh upon).

Of nearness to a pattern, model, standard, ideal course.

Without strict accuracy or precision; in an approximate or general way.

In various senses, in which closely, adv. is now the ordinary word.

In an approximative manner; approximately.

With some degree of accuracy; approximately. Now rare.

Roughly; approximately. Now rare.

In an approximate manner, nearly; elliptical with near approach to accuracy.

North American (originally U.S.). Preceding a prepositional phrase: around or near the specified time, amount, place, etc.; approximately…

Nearly, almost; approximately.

in a sort of (sorta) way, imperfectly; not exactly, absolutely, or properly.

In extended use and figurative. A notional region or area within which comparisons, approximations, etc., can be made; an accepted or expected range…

Roughly, approximately.