The working language on site is English.
Most people will have a basic understanding of spoken English but their abilities to read and write English are likely to be  limited.
Other languages include French, Arabic, Urdu, Farsi and Russian. The languages spoken tend to change as the population of the site changes.
Young people on site tend to speak up to four languages fluently.
Be careful about using 'unofficial' interpreters for anything that could be confidential.