Is there a reliable source where I can search whether a word is countable or uncountable?
I have checked in a electronic dictionary that mentioned all noun having plural form. eg juice, beef.
The online dictionary named English-Chinese dictionary shows the plural form of :
1. beef is beeves and beefs
2. air is airs
3. juice is juices
4. sauce is sauces
5. sea is seas
Please do not look up any more words in that online dictionary. I am appalled/stunned/amused at their suggestion that the word "beeves" is the plural of "beef".
Remember - correct capitalisation, punctuation and spacing make posts much easier to read.
@ Ju: I do not recommend watching second-rate westerns as a means of learning English. Most learners dictionaries will tell you what you want to know - note the '[U]' after the word 'noun' in this definition. Note too, that in most of the meanings you are likely to need for the word 'air', there is no plural.
May I know what is second-rate Westerns?
Cowboy movies of lesser quality.
Spaghetti Western - Wikipedia, the free encyclopedia
And then you have Spaghetti Westerns.