an accumulation of jobs not done or materials not processed that are yet to be dealt with (especially unfilled customer orders for products or services)
the number of observations in a given statistical category
the ratio of the number of observations in a statistical category to the total number of observations
the number of occurrences within a given time period; "the frequency of modulation was 40 cycles per second"; "the frequency of his seizures increased as he grew older"
a collection of things or persons to be handled together
all the loaves of bread baked at the same time
(often followed by `of') a large number or amount or extent; "a batch of letters"; "a deal of trouble"; "a lot of money"; "he made a mint on the stock market"; "it must have cost plenty"
the middle area of the human torso (usually in front); "young American women believe that a bare midriff is fashionable"
an intermediate part or section; "A whole is that which has beginning, middle, and end"- Aristotle
time between the beginning and the end of a temporal period; "the middle of the war"; "rain during the middle of April"
between an earlier and a later period of time; "in the middle years"; "in his middle thirties"
of a stage in the development of a language or literature between earlier and later stages; "Middle English is the English language from about 1100 to 1500"; "Middle Gaelic"