Learn Romanian: Biletul costă doisprezece euro. - The ticket costs twelve euros.

It is made of three parts: doi (two) + spre (toward) + zece (ten). All numbers from 11 to 19 are built this way in Romanian, literally meaning X toward ten.

Does the number twelve change depending on the gender of the noun it describes?

Yes! Because it contains the number two, twelve has two forms. We use doisprezece for masculine and neuter nouns (like euro). For feminine nouns, it becomes douăsprezece (using the feminine word for two, două).

Why is it just 'doisprezece euro' without the word 'de' in the middle?

In Romanian, numbers from 1 to 19 are placed directly next to the noun. You only add the connecting word de (of) starting with the number 20.

Why doesn't 'euro' have a plural ending like 'euros' in English?

Because euro is a borrowed international currency name, its form doesn't change in the plural in Romanian. One euro is un euro, and twelve euros is doisprezece euro.

Just to review, how do we get 'Biletul' from the word 'bilet' (ticket)?

In Romanian, the word for 'the' (the definite article) attaches to the end of the noun. Because bilet is a neuter noun, it takes the ending -ul to become biletul (the ticket).