The meaning of a word is the common usage of that word. It really isn't that difficult to figure out.
I can't say I agree with this view on language, it seems not to reflect my experience of how language is used.
The common usage of a term is a common way the term is used, it is not 'the' meaning.
'The' meaning only exists in the precise context it is used in. Outside of context a term has no meaning.
The common usage of 'the C-word', according to a dictionary is a woman's genitals, or an unpleasant person.
I grew up in a place where most of the time it was used to mean something completely different. No one felt the need to consult a dictionary on this.
'What are you ***** up to?' - meaning the same as 'how are you today my fine fellows?'
Playing golf - 'the 17th hole is a right ****' - meaning 'expect a great challenge to your golf game on the penultimate hole'
'Last night I was ****ed off my face' - meaning 'I had imbibed a great quantity of intoxicants'
*someone says something interesting*.... 'Ya ****!' - meaning 'That's a jolly fascinating point that I had not personally deduced previously'
And this is before we even look at additional layers of meaning beyond the purely denotative.
Language is a *convention*. Words do not have meanings other than how they are used.
I agree, but this is different from saying common dictionary usage is 'the' correct version.
"'Language does not exist; it is an abstractum. That we cannot enter twice the same river, applies also to language." "Language is no object of use, and no tool, it is no object at all, it is nothing but its use. Language is use of language" " Language came into being as a big city, room on room, window on window, flat on flat, house on house, street on street, quarter on quarter. . ." It is here that his insistence on the context comes in. With Frege and Wittgenstein he maintains that the basic unit of meaning is the sentence and that the word gains its meaning from it" On Fritz Mauthner's Critique of Language - Gershon Weiler
So, if everyone except you is using a word in a certain way, *that* is the definition of that word. if you are using it in a different way, then you are using it incorrectly.
If you can communicate information in a comprehensible way, there is no such thing as 'incorrect usage'.
Deviation from an arbitrary set of normative standards that almost everyone breaks every day in some form or another is not to be 'incorrect'.
When you are with friends you can use a word in a completely unique way that even your friends have never heard before and they can grasp its exact meaning. And if they can grasp its exact meaning it is not 'incorrect'.
The meanings of words also change over time and from location to location. But, if you are the only one using a word in a particular way, then you are the one abusing the language, not everyone else.
Using atheism as an example. Some people in the 1980s thought 'lack of belief' was a better usage than disbelief and so tried to popularise it.
Should we say they were 'misusing' language? Or using it for a particular purpose?
Trying to assign additional or different meaning to a term is simply use of language, not misuse.