Korean Dictionary
How to say "Perpendicular" in Korean
“Perpendicular” in Korean is 수직선 (pronounced "Sujiksseon").
수직선
Sujiksseon
Usage & Context
Sujiksseon is the Korean word for perpendicular. Perpendicular lines are used in Korean design to create structure and precision. They represent exactness and order.
Example Sentence
수직선이 정확해요.
The perpendicular line is precise.
How to use 수직선 naturally
Quick answer
The Korean word for “Perpendicular” is 수직선, romanized as Sujiksseon.
Usage tip
Learn this word together with a complete Korean sentence. Meaning often depends on particles, politeness level, and word order.
Common mistake
Do not rely only on the English meaning. Read the Korean example sentence and notice the particles, word order, and politeness level around 수직선.
Pronunciation Guide
수 (Su) sounds like 'soo' in 'soon'. 직 (jik) sounds like 'jik' in 'jiggle' but with a short 'i' like in 'sit'. 선 (sseon) sounds like 'sun' but with a tense, sharper 's' sound, almost like a double 's'.
More Example Sentences
Describing architectural structure.
건물의 기둥은 바닥과 수직선으로 세워져 있어요.
The building's pillars are erected perpendicular to the floor.
Explaining a geometry lesson.
수직선을 그어서 직각을 만들 수 있어요.
You can draw a perpendicular line to create a right angle.
Describing a signpost's position.
이 표지판은 땅에 수직선으로 박혀 있습니다.
This signpost is driven perpendicularly into the ground.
Cultural Context
While '수직선' (Sujiksseon) is a technical term, the concept of perpendicularity is crucial in traditional Korean architecture, particularly in wooden structures like hanok. The precise alignment of pillars and beams ensures stability and longevity, reflecting a practical and aesthetic appreciation for structural integrity. It contrasts with the flowing, organic lines often found in other aspects of Korean art.
Editorial note
We review entries like 수직선 for pronunciation, example sentence fit, and learner mistakes so the page answers more than a direct dictionary lookup.
Reviewed by Min-jung Park, Korean Language Teacher. Updated May 31, 2026. See our editorial standards.
Common Phrases
수직으로
perpendicularly, vertically
수직 이착륙
vertical takeoff and landing (VTOL)
수직 관계
vertical relationship (hierarchical)
Related Expressions
직각
Jikgak
right angle
평행
Pyeonghaeng
parallel
교차
Gyocha
intersection
기준선
Gijunseon
baseline
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