…einzigartig…
…being the only one of its kind; unlike anything else…
…unique…
…only…
…unico…
…único…
…belonging or connected to (one particular person, place, or thing)…
…one-way sign…
…single party…
…‘one size’…
…‘all at one price’…
…être particulier/-ière à…
…to be an only child…
…a unique opportunity…
…one-party system…
…one of a kind…
…that guy's priceless!…
…he's the only witness…
…the one and only person…
