This is the 14145th most frequent Russian word.
опорный
"Опорный" means "supporting" or "reference."
The word 'опорный' describes something serving as a support or base in this context.
Этот опорный пункт расположен на высоте.
This support point is located at height.
Here, 'опорный' refers to an element that provides support in a structural context.
Опорный элемент конструкции должен быть прочным.
The supportive element of the structure must be strong.
In this usage, 'опорный' signifies key or supporting words, crucial for comprehending the text.