This is the 17181st most frequent Russian word.
столбик
"Столбик" means "small column" or "post" in English.
Here, 'столбик' refers to a small vertical pole or column used structurally or decoratively.
В саду растет столбик с розами.
In the garden grows a post with roses.
Here, 'столбик' describes the thin vertical line or substance, like the mercury inside a thermometer.
На термометре был столбик ртути.
There was a mercury column in the thermometer.
Here, 'столбик' refers to a column in a table or chart.