Great x Grand: Qual a diferença

Qual a diferença entre "Great" e "Grand" no Inglês americano, quando aparece em títulos oficiais?
Avatar do usuário Ricardo F. Bernardi 6920 14 125
The words are similar, but "grand" has Latin roots. It has the idea of "imposing".

"Great" has Germanic roots and is used to refer to non-material things. Material things are often "large" or "big". World War I was called at the time "the Great War". "Great" can mean "impressive" or "important" or "monumental"; however, it can also mean "wonderful."

In Ireland, it's common to hear people use "grand" to mean "wonderful" as well, so in that country, the words would be interchangeable for both meanings.

In Informal English, the word grand also means "mil dólares ou libras".

Now, regarding on your question, the word grand refers to:

1. Great in size, and fine or imposing in appearance or impression; illustrious, dignified, or noble (said of persons); majestic, splendid, magnificent, or sublime (said of things):

A grand monarch.
A grand view.
A grand conception.

2. Having higher rank or more dignity, size, or importance than other persons or things of the same name:

A grand lodge.
A grand vizier.
A grand piano.

You should read:

Reference: Pearson Education. Longman Dictionary. 2004.
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Avatar do usuário Ricardo F. Bernardi 6920 14 125
Just for curiosity, the prefixes grand- and great- are used to denote family relationships that are two or more generations apart.
Either prefix may be used for the aunts and uncles of one's parents and the children of one's nephews and nieces, great- being more frequent than grand-: great-niece; grand-nephew; great-uncle; grandaunt.

>> The prefix grand- is always used for the parents of one's parents and the children of one's children: granddaughter; grandfather; grandchild; grandma;

>> The prefix great- is also used for the parents of one's grandparents and the children of one's grandchildren: great-grandmother; great-grandson; great-grandparent; (the father of one's great-grandfather is one's great-great-grandfather, and so on.)

(1) Pearson Education. Longman Dictionary. 2004.
(2) MANSER, Martin H. Good World Guide: The fast way to correct English - spelling, punctuation, grammar and usage. 6th ed. Plain Language Comission. Bloomsbury Publisher. 2007.