Meaning : A degree in a continuum of size or quantity.
Example :
It was on the order of a mile.
An explosion of a low order of magnitude.
Synonyms : order
Meaning : A number assigned to the ratio of two quantities. Two quantities are of the same order of magnitude if one is less than 10 times as large as the other. The number of magnitudes that the quantities differ is specified to within a power of 10.
Synonyms : magnitude
Order of magnitude meaning in Bengali (Bangla).