This is the 2449th most frequent Russian word.
полосы
"Полосы" - "stripes" or "bands."
The word 'полосы' here refers to 'stripes' or 'lanes' related to road markings.
На дороге были видны полосы свежей разметки.
On the road, stripes of fresh markings could be seen.
In this sentence, 'полосы' represents patterns or 'stripes' that are part of the tiger's fur.
Тигр имеет яркие чёрные полосы на теле.
The tiger has bright black stripes on its body.
Here, 'полосы' is referring to 'lines' or disruptions that appear on old photos.