数【かず】
number, amount
数字【すうじ】
numeral, figure, digit, numeric character
多数【たすう】
large number (of), many, majority
複数【ふくすう】
plural, multiple, several
少数【しょうすう】
small number, few, minority
過半数【かはんすう】
majority
半数【はんすう】
half the number, haploid
数値【すうち】
numerical value, numerics, reading (on a meter, etc.)
回数【かいすう】
number of times, frequency, count
手数料【てすうりょう】
(handling) fee, charge (e.g. for a cancellation), commission, brokerage
総数【そうすう】
total (number), count
人数【にんずう】
the number of people, many people, a large number of people
数量【すうりょう】
quantity, volume, amount
数学【すうがく】
mathematics
数多く【かずおおく】
in great numbers
日数【にっすう】
number of days
無数【むすう】
innumerable, countless, numberless
大多数【だいたすう】
great majority
枚数【まいすう】
the number of flat things, win-loss difference which influences the ranking of wrestlers
数億年【すうおくねん】
several hundred million years