Yes. It literally means 'lowlands'.
Yes it is. In fact, "the Netherlands" is a plural form, just like, for example, " the Grenadines" or "the Bahamas".
The word crises is a plural word; it is the plural form of the word crisis.
There is no plural word for if.
The plural word for delay is delays.
The plural form for the demonstrative pronoun this is these.
A non-plural word, a word (noun or pronoun) that is not plural is singular, a word for just one.
the plural word is comedones
No it's a singular word. A plural word would be "have".
'Holland' is another name for the Netherlands. Strictly spoken 'Holland' is just two provinces in the Netherlands: Noord (North) Holland an Zuid (south) Holland. The Netherlands is actually one country, despite the fact that the word's plural form suggests differently. Yes, Dutch do come from the Netherlands (or Holland).
In Chinese, the plural form of the word "minute" is "分钟" (fēnzhōng).
There is no plural form for the word, countries. This word itself is a plural.
The plural for of the word planet is the word planets.