Construction definitions dictionary

What is construction in English Oxford dictionary?
[uncountable] the process or method of building or making something, especially roads, buildings, bridges, etc..
What is the meaning of constructions in dictionary?
a word or phrase consisting of two or more forms arranged in a particular way. a group of words or morphemes for which there is a rule in some part of the grammar..
Where does Dictionary com get its definitions?
Dictionary.com's main, proprietary source is the Random House Unabridged Dictionary, which is continually updated by our team of experienced lexicographers and supplemented with trusted, established sources including American Heritage and Harper Collins to support a range of language needs..
[uncountable] the process or method of building or making something, especially roads, buildings, bridges, etc.

What is construction in English Oxford dictionary?