adjective / adverb / noun
low
LOH/ləʊ/
Situated near the bottom of a reference range.
The low shelf sits near the floor beside a high window.

Etymology
Low probably comes from Old Norse lagr or a similar Scandinavian source. Its meanings connect physical height with figurative standing: being near the ground parallels being humble in rank or below a usual level.
In context
cause that um electron to drop from the high level to the low level emitting a photon
More examples
- Birds fly low over the lake.
- The price drops to a new low today.
- He holds a low rank in the organization.
- She feels low after another disappointing day.
Forms
low · lower · lowest · lows
lowly adjective — Low in rank or social position.