Consider including Murray's classification of words

[gustafl]

In the introduction to the OED, Murray displays a figure with a number of word classifications. In the middle, there are three core classes, and around them are five more.

• common – everybody's shared vocabulary
• literary – more used in writing
• colloquial – more used in speech

Other classes:

• scientific – related to a particular field of science
• technical – related to a particular non-scientific field
• foreign – not yet fully assimilated
• dialectal – bound to a specific dialect
• slang – more than colloquial and shared only within a limited group

I imagine this list could be useful when registering words. Consider adding a radio button group for them on the lexeme registration form. If we do, it might be a good idea to merge the scientific and technical classes.

[gustafl]

This idea is even better when each user has his own lexicon. Now we don't need to consider the situation when different users describe words differently.