No, the phrase "top of the line" is not hyphenated.
No, the phrase "thank you note" is typically not hyphenated when used in a sentence.
Yes, back-to-school is hyphenated when used as an adjective phrase before a noun, such as "back-to-school shopping."
Yes, "limited-time" is hyphenated when used as an adjective phrase to describe something that is only available for a short period.
Yes, "year after year" should be hyphenated when used as a compound adjective before a noun (e.g., year-after-year performance). However, it is not hyphenated when used as an adverbial phrase (e.g., they met year after year).
The phrase "on top of the world" is an idiom. It means that one is feeling wonderful or fantastic. If someone is "sitting on top of the world" it means that they are rich or in an advantageous position.
The phrase "top of the line" is typically not hyphenated when used in a sentence as a descriptive phrase. However, when used as a compound adjective before a noun, it is often hyphenated as "top-of-the-line." For example, you would write "This is a top-of-the-line product."
Yes, you use hyphens for the phrase "top-of-the-line." It is a compound adjective that contains a preposition, so it is hyphenated.
No, "bottom line" is not hyphenated when used as a noun or verb phrase. However, it can be hyphenated as an adjective when used before a noun, as in "bottom-line results." In general usage, it's best to keep it as two separate words.
It should be hyphenated.
The phrase "per line item" is typically not hyphenated. It is used to describe something that is applicable to each individual line item in a list or account, and the words function together without the need for a hyphen. However, in specific contexts, such as when used as an adjective before a noun, you might see it hyphenated as "per-line-item" for clarity.
Yes, end-product is hyphenated. It is a noun and treated as one word which is hyphenated.
No.
Probably not.
No, the phrase "thank you note" is typically not hyphenated when used in a sentence.
The noun phrase 'four week vacation' does not need to be hyphenated.
Yes, one-on-one is hyphenated. I don't know why, exactly. It just is.
Yes and no. The out-of-plumb wall should be hyphenated while the wall was out of plumb should not.