This is the 9644th most frequent Korean word.
계양
"계양" refers to the act of hoisting or raising (usually a flag).
In this sentence, '계양' refers to the name of a mountain, 'Geyang Mountain', being a proper noun.
이 산책로는 계양산까지 이어집니다.
This trail leads to Geyang Mountain.
Here, '계양' signifies a system or competence related to the operation of lifting or hoisting in a technical context.
새로운 계양 시설은 에너지 효율을 향상시킵니다.
The new hoisting system improves energy efficiency.
In this case, '계양' refers to the growth or development process, likely used figuratively or in specific industry jargon.