stoke

<br>Sounds like "stove" which is a furnace.

Remember the word stoke as strike.. We start a fire by striking the match stick..

stoke rhymes with poke, so you are poking the fire, similar to stoking the fire.

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poke+stove ..so, when you poke a stove, it'll stir up a fire and will be fed plentifully with fire

ST-OKE sounds like stir+smoke so stoke is stirring up a fire which brings about smoke