merci
Meaning
merci is the standard and most common way to say 'thank you' in French.
Usage and formality
It is suitable for almost all situations, from casual to formal. It can be used when speaking to friends, family, colleagues, or strangers.
Pronunciation
The pronunciation is approximately 'mehr see'. The 'r' sound is a guttural 'r' common in French, and the final 'i' is a clear vowel sound. Stress is generally on the second syllable.
Grammar
merci is an interjection and does not change form. It is often followed by 'beaucoup' (very much) for emphasis: 'merci beaucoup'.
Interesting facts
The word 'merci' originates from the Latin word 'merces', meaning 'wages' or 'reward', but evolved to mean gratitude.
Notes
merci: standard French for 'thank you'. Pronounced 'mehr see'.