Like the words mom, dad, uncle, etc, wife would be capitalized if it is used as a proper noun, like a name. If it is not a proper noun, it is not capitalized. For example, "Wife, bring me my slippers" vs "I would like my wife to bring me my slippers"
It is capitalized at the beginning of the sentence or when it forms part of the proper noun, or when it precedes a person's name or when it is used as a direct address.
Examples:
Widow Carol
It's a pity that you lost your husband, Widow.
No is the answer.
Husband in a proper noun
No, the word forecast should not be capitalized in a sentence.
Should breakfast be capitalized in a sentence
It is capitalized at the beginning of the sentence.
No it shouldn't be capitalized.
Courthouse is not usually capitalized in a sentence.
Dodgeball is capitalized if it starts the sentence. But if dodgeball is used in the middle of a sentence it is not capitalized.
They are not proper nouns. They would not be capitalized in a sentence.
No, the word forecast should not be capitalized in a sentence.
No it's not capitalized.
Should breakfast be capitalized in a sentence
Yes, "Biology" should be capitalized because it is a proper noun and the name of a specific scientific discipline.
No, it shouldn't be capitalized.
"Who" and "was" are not capitalized unless they are the first words of a sentence.
It is capitalized at the beginning of the sentence.
Yes, Celsius has to capitalized. . .
Yes, all words used in the beginning of the sentence is capitalized.
In general, no, "transition process" should not be capitalized in a sentence.