The noun (Substantiv/Nomen) Eu-land is neutral in German. Therefore, the correct definite article in the nominative singular is das. So, you say: das Eu-land.
(EU country)
This word is composed and its gender is always determined by the root word.
Ein Staat, der Mitglied der Europäischen Union (EU) ist.
A state that is a member of the European Union (EU).
Deutschland ist ein EU-Land.
Germany is an EU country.
German grammatical gender can be tricky at first, as it doesn't always seem logical - like with the neuter 'das Mädchen' (the girl). But here's the good news: Even though you won't find a rule for every word and some things just need to be memorized, there are quite a few helpful patterns and rules! These are real guideposts and can make your life significantly easier. So it's definitely worth knowing them!
Nouns ending in -chen are always neuter. This diminutive suffix makes things small or cute
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Nouns ending in -lein are always neuter. This diminutive suffix makes things small or cute
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Nouns ending in -icht are usually neuter. Found in abstract or collective nouns
Nouns ending in -il are usually neuter. Found in technical or scientific terms
Nouns ending in -it are usually neuter. Found in technical or scientific terms
Nouns ending in -ma are usually neuter. Found in abstract or technical terms
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Nouns ending in -ment are usually neuter. Found in abstract or technical terms
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Nouns ending in -tel are usually neuter. Found in fractional or diminutive terms
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Nouns ending in -tum are usually neuter. Found in abstract or collective nouns
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Nouns ending in -um are usually neuter. Found in abstract or technical terms
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Words with Ge- prefix: Often neuter, especially in collective or abstract nouns
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Exceptions:
Nouns ending with -nis and -sal: About 70% are neuter, often abstract or collective
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Foreign Loan Words (-al, -an, -ar, -är, -at, -ent, -ett, -ier, -iv, -o, -on): Often neuter, especially in technical or abstract terms
Alphabet Letters and Music Notes: Always neuter in German
Continents, Cities, Provinces, and Countries: Typically neuter, except for specific exceptions
Exceptions:
Gerunds and Parts of Speech as Nouns: Always neuter in German
Examples:
Hospitality Establishments: Names of hotels, restaurants, and cinemas are neuter
Nouns ending in -gut are usually neuter. Often describing goods or assets