Englishfor English speakers
arithmetical
—
adjective
(= arithmetic)
relating to or involving arithmetic
arithmetical computations
mean
Verb
—
A word means something when the word expresses the same idea as the other something.
Slay means kill. Both of them mean to make dead.
mean
Adjective
—
When you are a mean person, you are not nice.
The boys who hit you were very mean.
mean
Noun
—
The mean is a measure of the average of a list of numbers. The sum total of the numbers divided by how many numbers in the list.
The mean of the numbers 2,3,4 is 3. (2+3+4)/3 = 9/3 = 3.
bed
Noun
—
A piece of furniture to sleep on.
At night, I go to bed.
—
The bottom of a river or ocean.
The fish was so far down in the water that it was touching the river's bed.
bed
Verb
—
To have sex with someone.
By the next week, Josh had bedded Tina and Holly.
thickness
Noun
—
The thickness of something is how thick it is; how far it is from one side of it to the other side.
The thickness of one piece of paper is much less than a millimetre.
This blanket is too thin. It doesn't have enough thickness to keep me warm.