No because it is not a proper noun. However, if you place it at the beginning of a sentence yes it needs to be capitalized like other words.
Have should be capitalized if it is the beginning of a sentence. Summer should not be capitalized.
It should only be capitalized if it forms part of a title.
As an abbreviation it should be capitalized.
Yes it should be capitalized.
Yes it should always be capitalized.
Have should be capitalized if it is the beginning of a sentence. Summer should not be capitalized.
It should only be capitalized if it forms part of a title.
As an abbreviation it should be capitalized.
Yes it should be capitalized.
Yes it should always be capitalized.
Yes it should be capitalized.
No it should not be capitalized.
The first 'c' should be capitalized.
Yes, it should be capitalized.
No. It should not be capitalized.
The words that are not capitalized unless they are the first word in a sentence are common nouns, pronouns (except the first person, subjective 'I'), common adjectives, verbs, adverbs, prepositions, conjunctions, interjections, and determiners. The words that are always capitalized are proper nouns, proper adjectives, and the first person, subjective, personal pronoun 'I', and acronyms.
"Western" should be capitalized and "world" should not.