This is the 5544th most frequent Russian word.
полоса
Stripe, strip, zone, band, or stretch.
Here, 'полоса' signifies a traffic lane, indicating a specific type of road division.
На дороге была только одна полоса движения.
On the road, there was only one lane of traffic.
In this sentence, 'полоса' refers to a stripe, used to describe a visual streak or band of color in the sky.
Синяя полоса неба виднелась между тучами.
A blue stripe of sky was visible between the clouds.
Here, 'полоса' is used metaphorically to denote a period or phase, indicating a stretch of time characterized by specific circumstances.