접근하다 / 다가오다 (and 다가가다, 다사서다, 다가앉다) 접근하다 is a formal word which means "to approach or get near (someone or something)". It is formal and factual, and more often used in news reports, literature and formal speech than in conversation. 다가오다 (come near), 다가가다(go near), 다가서다(come stand near), 다가앉다(sit near) are everyday words. They share the meaning of "to get closer" with 접근하다 but don't sound as cold and business-like. 다가오다 and 다가가다 are sometimes used figuratively, in the sense of "to understand and give support". - 달이 지구에 가장 가까이 접근하는 때. When the moon gets closest to the earth. - 선생님은 인사하는 내게 다가오셨다. My teacher came over to me as I greeted him. - 점원은 웃으면서 손님에게 다가갔다. The store helper walked to the customer smiling. - 이리 다가와 않아 = 이리 다가앉아. Come sit here closer to me. - 전시물에 다가서지 마시오. Do not get near to the exhibits.

감사합니다 ^^

접근하다 → It will be used when trying to obtain a thing or when necessary to approach if there is a purpose.