그래서 (geu-rae-seo, geuraeseo) · 그러니까 (geu-reo-ni-kka, geureonikka)
그래서 smoothly connects cause and effect, while 그러니까 emphasizes or reconfirms conclusions to the listener.
One lane per word — no nested boxes, just the gist.
Used to naturally connect a cause or reason to its result
When to use
Result connection, Cause-result explanation, Neutral narration
The nuance
Used to state the result following a cause or reason mentioned before; mainly an objective and neutral connector.
Used when the speaker wants to emphasize or reconfirm the conclusion or reason to the listener
When to use
Emphasizing conclusion, Checking understanding, Conversational emphasis
The nuance
Used to check listener’s understanding or to emphasize; common in conversational Korean.
비가 많이 왔어요, 그래서 길이 미끄러워요.
bi-ga man-i wass-eo-yo, geu-rae-seo gil-i mi-kkeu-reo-wo-yo., bi ga man i wass eo yo, geu rae seo gil i mi kkeu reo wo yo.
Naturally connects cause (heavy rain) and effect (slippery road) in a neutral sentence.
비가 많이 왔어요, 그러니까 길이 미끄러워요.
bi-ga man-i wass-eo-yo, geu-reo-ni-kka gil-i mi-kkeu-reo-wo-yo., bi ga man i wass eo yo, geu reo ni kka gil i mi kkeu reo wo yo.
Can be used to emphasize the result and help listener understand.
회의가 길었어요, 그래서 피곤해요.
hoe-ui-ga gil-eoss-eo-yo, geu-rae-seo pi-gon-hae-yo., hoe ui ga gil eoss eo yo, geu rae seo pi gon hae yo.
Objectively connects cause and effect.
회의가 길었어요, 그러니까 피곤해요.
hoe-ui-ga gil-eoss-eo-yo, geu-reo-ni-kka pi-gon-hae-yo., hoe ui ga gil eoss eo yo, geu reo ni kka pi gon hae yo.
Emphasizes the reason for tiredness and checks listener’s understanding.
그래서, 내일 만날까요?
geu-rae-seo, nae-il man-nal-kka-yo?, geu rae seo, nae il man nal kka yo?
그래서 is a cause-result connector; using it before a question sounds unnatural.
그러니까, 내일 만날까요?
geu-reo-ni-kka, nae-il man-nal-kka-yo?, geu reo ni kka, nae il man nal kka yo?
Natural in conversation to check understanding while making a proposal.
나는 바빠서, 그래서 못 갔어.
na-neun ba-ppa-seo, geu-rae-seo mos gass-eo., na neun ba ppa seo, geu rae seo mos gass eo.
Both cause and effect appear before '그래서'; it should follow only the cause.
나는 바빠서, 그러니까 못 갔어.
na-neun ba-ppa-seo, geu-reo-ni-kka mos gass-eo., na neun ba ppa seo, geu reo ni kka mos gass eo.
Natural sentence emphasizing the reason to the listener.
Which sentence uses '그래서' most naturally?
When is it appropriate to use '그러니까'?
Which sentence is incorrect?
What does it mean?
