Question

what does combustion mean short answer of this question
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Answer 1

Combustion, a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame.

Answer 2

$\huge{\underline{\underline{\bold{\mathtt{\purple{✍A{\pink{N{\green{S{\blue{W{\red{E{\orange{R✍}}}}}}}}}}}}}}}}$$\huge{\rightarrow}$

Wʜᴇɴ ᴀ sᴜʙsᴛᴀɴᴄᴇ ʀᴇᴀᴄᴛs ᴡɪᴛʜ $\mathtt{{O}_{2}}$ ɪɴ ᴘʀᴇsᴇɴᴄᴇ ᴏғ ᴀɪʀ ᴀᴛ ʜɪɢʜ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ . Tʜɪs ᴘʀᴏᴄᴇss ɪs sɪᴍᴘʟʏ ᴋɴᴏᴡɴ ᴀs ᴄᴏᴍʙᴜsᴛɪᴏɴ .