Jisho

×
Noun
1. world linePhysics
Noun
2. parallel universe (in fiction); parallel world; alternative realityColloquial
Wikipedia definition
3. World lineIn physics, the world line of an object is the unique path of that object as it travels through 4-dimensional spacetime.
Read “World line” on English Wikipedia
Read “世界線” on Japanese Wikipedia
Read “World line” on DBpedia

Discussions

to talk about this word.