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as1 for example; for instance. [1/7 definitions]
associative property in addition and multiplication, the characteristic that allows you to add or multiply a group of numbers in any order and get the same answer. For example, in multiplication, (5 x 2) x 7 is equal to (7 x 2) x 5.
assumption something that is supposed or believed without questioning. For example, if you ask someone whether she is allowed to watch TV during dinner, you have made an assumption that there is a TV in her house. Assumptions are ideas people have that are not based on proven facts. An assumption can be correct or incorrect. [1/2 definitions]
canopy something high in the air or sky that is spread out over the earth. The top layer of branches and leaves in a rainforest, for example, is called a canopy. [1/2 definitions]
council a group of persons gathered together to discuss or make decisions about public matters. For example, a city council may make laws for or give advice on how to run a city.
distributive property in mathematics, a characteristic of numbers that allows you to multiply a group of numbers and get the same answer you would get if you multiplied each member of the group and then combined the answers. For example, 4 x (8 + 1 + 5) is equal to (4 x 8) + (4 x 1) + (4 x 5).
for instance as an example; for example.
grammar the rules for forming the words and sentences of a language. Some of these rules have to be learned. Other rules are already in the head of a native speaker. For example, a native English speaker would not say, "I a cat bitten by was," because the grammar does not make sense. When one learns a new language, most of the rules of its grammar have to be learned. [1/2 definitions]
rate1 a quantity calculated with regard to another measured quantity, as, for example, "miles per hour" or "beats per minute." [1/6 definitions]
root1 the part of a word to which other word parts, such as suffixes and prefixes, can be added--or a free-standing word with no other word parts. The word "heat" is a free-standing word that also functions as a root. When you combine this root with the prefix "pre-," for example, you get a new word, "preheat," that means to heat up in advance. [1/9 definitions]
wave the form that energy takes when traveling. Energy in the form of heat, light, or sound, for example, travels in the form of waves. [1/11 definitions]