Potential answers for "Intensify, as effort"

⭐⭐⭐⭐ RAMPUP
⭐⭐ ENLIVEN
⭐⭐ HEATUP
⭐⭐ ENHANCE
⭐⭐ REVUP
⭐⭐ ESCALATE
⭐⭐ STEPUP
⭐⭐ DEEPEN
⭐⭐ SHARPEN
⭐⭐ FLARE

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