Interesting. Which lexicon does that come from?
The lexicon I'm using says:
(B) The earth, this lower world as the abode of man. (1) The then-known world and particularly the people who lived in it (Mar 16:15; Joh 16:21, Joh 16:28; Joh 21:25; 1Ti 3:16; 1Pe 5:9; 2Pe 3:6). To come or be sent into the world means to be born, as in Joh 1:9. To go forth into the world means to appear before men as in Joh 3:17, Joh 3:19; Joh 6:14; 1Ti 1:15; Heb 10:5; 1Jn 4:1, 1Jn 4:9; 2Jn 1:7. Hyperbolically (Mat 4:8, "all the kingdoms of the world"; see Rom 1:8). (2) Metonymically, the world meaning the inhabitants of the earth, men, mankind (Mat 5:14; Mat 13:38; Joh 1:29; Joh 3:16; Rom 3:6, Rom 3:19; 1Co 4:13; 2Co 5:19; Heb 11:7; 2Pe 2:5; 1Jn 2:2). Hyperbolically, the world for the multitude, everybody (Joh 7:4 "show thyself to the world" means manifest thyself, do not remain in secret; Joh 12:19); metaphorically, that is openly (Joh 14:22; Joh 18:20; 2Co 1:12). It also stands for the heathen world, the same as tá éthnē (G1484), "the nations" (a.t. [Rom 11:12, Rom 11:15 {cf. Luk 12:30}]).
On the next day, John saw Jesus coming toward him, and so he said: "
Behold, the Lamb of God. Behold, he who takes away the sin of the world. "
John 1:29