chilli          
noun [ C or U ] UK (US chili  chilies) usuk/ˈtʃɪl.i/ plural chillies
A2 辣椒
the small, red or green seed case from particular types of pepper plant that is used to make some foods very hot and spicy
  Add 2 chopped red chillies. 加入两根切成块的辣椒。 
 Don't use too much chilli. 不要用太多辣椒。 
  (also chilli con carne)辣味肉豆(一道菜肴) 
a spicy dish of meat, onions, chillies or chilli powder, and usually beans
  His favourite food is chilli. 辣味肉豆是他喜欢的食品。 
 I've made a chilli for tonight. 今天晚上我做了辣味肉豆。 
 - More examples
- I added a couple of chillies to the stew.
- Cut the chillies open and remove the seeds.
- I bought a selection of red and green chillies.