Potential answers for "Functioning well, as machinery"

⭐⭐⭐⭐ RUNNINGSMOOTHLY
⭐⭐⭐ DRIESUP
⭐⭐ QUA
⭐⭐ INGEAR
⭐⭐ ECOSYSTEM
⭐⭐ USABLE
⭐⭐ INUSE
⭐⭐ NOGO
⭐⭐ ABLE
⭐⭐ OFF

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