中餐 zhōngcān lunch

lunch; Chinese meal; Chinese food

How to remember 中餐: 中 middle + 餐 to eat = lunch.

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中餐 (zhōngcān) most often means Chinese food/cuisine, contrasted with 西餐 (xīcān, Western food): 我们去吃中餐吧 (wǒmen qù chī zhōngcān ba) - let's go eat Chinese food.
In mainland usage it can also mean 'lunch,' parallel to 早餐/晚餐, but this sense is less common than 午饭/午餐 (wǔfàn/wǔcān) for lunch in everyday speech - context (cuisine vs. meal-of-the-day) disambiguates it.
Don't confuse with 中国菜 (Zhōngguó cài), which refers more specifically to Chinese dishes/cooking rather than the cuisine category as a whole; 中餐 is the broader, more common contrastive term with 西餐.