그

• IPA^(key)[kɯ]
• Phonetic Hangul[그]

그 • (geu)

1. A Hangul syllabic block made up of ㄱ and ㅡ.

Of native Korean origin.
(3rd person pronoun) introduced together with 그녀 (geunyeo) by Kim Dong-in[1], probably calque of Japanese 彼 (かれ) (kare).

그 • (geu)

1. (demonstrative) that (of what has been already said or known)

   그 남자는 일본인입니까 아니면 중국인입니까? 그는 중국인입니다.

   Geu namjaneun ilboninimnikka animyeon jungguginimnikka? geuneun jungguginimnida.

   Is that man Japanese or Chinese? - He is Chinese.

   근데 방금 그 여자 누구에요?

   Geunde banggeum geu yeoja nugueyo?

   By the way, who is that girl?

그 (geu) is used for items closer to the listener than to the speaker, and 저 (jeo) is used for items far from both the speaker and the listener

• 그것 (geugeot, “that thing”)
• 그곳 (geugot, “that place”)
• 그때 (geuttae, “that moment”)
• 그대로 (geudaero, “like that”)
• 그렇다 (geureota, “to be that way”)
• 그이 (geu-i, “he”)
• 그놈 (geunom, “he”) (insulting)
• 그놈들 (geunomdeul, “they”) (insulting)
• 그년 (geunyeon, “she”) (insulting)

• 이 (i, “this”)
• 저 (jeo, “that”)

그 • (geu)

1. (literary) he

   그는 아무런 말도 없이 가버렸다.

   Geuneun amureon maldo eopsi gabeoryeotda.

   He left without saying anything.

그녀 (geunyeo, “she”) is an explicitly feminine third-person pronoun.

• (demonstrative, that): 저 (jeo)

• (demonstrative, this): 이 (i)

• 그녀 (geunyeo, “she”)
• 그들 (geudeul, “they”)
• 그네들 (geunedeul, “they”)