How do you spell increasing?

The correct spelling is I-N-C-R-E-A-S-I-N-G. To become progressively greater (as in size, amount, number, or intensity)

What does increasing mean?

To become progressively greater (as in size, amount, number, or intensity)

increasing

Source: Merriam-Webster Dictionary API

Middle English encresen, from Anglo-French encreistre, from Latin increscere, from in- + crescere to grow {mat|crescent|}

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