Il museo ha circa cento fossili.

From Lesson 154:Elapsed time (fa)·Italian

Questions & Answers about Il museo ha circa cento fossili.

Why use circa here instead of quasi?
circa means "about" or "approximately", so there could be slightly more or slightly fewer than a hundred fossils. quasi means "almost", which would mean the museum has strictly less than a hundred (for example, 95 or 99).
If there are multiple fossils, why doesn't cento change to a plural ending?
In Italian, the word cento (one hundred) is invariable, meaning it never changes its ending. Even if you have five hundred (cinquecento), the suffix always stays -cento.
What is the singular form of fossili?
The singular is fossile. Nouns that end in -e in the singular (like the masculine noun il fossile) always change their ending to -i in the plural.
How would I use circa with the time expressions we are currently learning, like due anni fa?
You can put circa right before the number to express an approximate amount of time. For example, circa due anni fa means "about two years ago".

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