Naturalization is the final step beyond permanent residence: full citizenship, with a passport, voting rights, and an unconditional right to stay. Most countries require several years of legal residence first (often 5–10), plus tests of language and civic knowledge, good character, and sometimes physical-presence minimums.
Timelines range widely — a few countries naturalize after as little as 2–3 years (sometimes faster through marriage or ancestry), others take a decade or more. Some require you to give up your original citizenship; others allow dual nationality.
Why it matters for your move
Citizenship is the most durable form of belonging a move can lead to — and the rules on how long it takes, and whether you'd keep your original passport, can tip the choice between two otherwise-similar countries.