orderly
US /ˈɔːr.dɚ.li/
UK /ˈɔːr.dɚ.li/

1.
arranged or disposed in a neat, tidy manner
:
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The books were stacked in an orderly fashion on the shelves.
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The classroom was always kept in an orderly state.
2.
behaving in a well-behaved and disciplined manner
:
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The crowd remained orderly despite the long wait.
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The students marched orderly into the assembly hall.
1.
a hospital attendant who performs non-medical duties
:
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The orderly helped the patient move from the bed to the wheelchair.
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He worked as an orderly in a busy city hospital.