Sworn, certified, notarised, apostilled: a plain-English glossary

Four words clients confuse weekly. Which one your embassy actually wants, and what it costs you to guess wrong.

Four words clients confuse weekly. Which one your embassy actually wants, and what it costs you to guess wrong.

The question that never goes away.

Translation, in the field, is rarely a one-to-one mapping of words. It's a series of judgement calls about register, audience, and legal weight — every one of which a generalist might get away with ignoring. Specialists rarely do.

This piece looks at three real cases where the cheapest, fastest, most "literal" translation would have cost the client more than the project saved.

"The cheapest translator is the one whose work doesn't need a second pass. The rest are just charging for the same hours twice."

Three quick cases.

Case 1 — A pharmaceutical insert. A 14-word warning was translated with the literal verb form. The localised verb implied recommended dosing rather than maximum. Pulled from market three weeks after launch. Cost: low six figures, plus a year of regulatory headaches.

Case 2 — A commercial sub-clause. "Reasonable endeavours" in the source contract was translated as the local equivalent of "best efforts" — a meaningfully stronger obligation. The clause was negotiated out only after the deal had closed; the gap cost the client a discount they hadn't budgeted for.

Case 3 — A patent claim. The translator preserved every word, including a structural redundancy that, in the target jurisdiction, narrowed the claim by half. The patent issued. Half the scope went with it.

The lesson.

Subject-matter translation is not a luxury — it is the only way to stop your translation budget from quietly becoming a litigation budget. The hourly rate of a specialist linguist is almost always lower than the cost of fixing a mistranslation a year later.

If you're translating anything that affects safety, money, or legal standing — get a specialist on the brief from the first email. We'll do the same.

Premium Lingua editorial · Published February 28, 2026
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