This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles.
If a word conforms to a special rule, I call it a Lifelong Word™.
Use the examples below to find the rule.
Lifelong Words™ | Not Lifelong Words™ |
---|---|
girl | boy |
eastern | northern |
right | left |
biological | dead |
master | slave |
stupid | clever |
friendship | rivalry |
bike | automobile |
lunch | supper |
amazing | everyday |
public | private |
situp | pushup |
Important: There are some words which cannot be evaluated with this rule. Examples of undefined words:
Japanese, Journalism, Jaw, Injection, Prejudice, Joy, Jaywalk, trajectory
CSV version:
Lifelong Words™, Not Lifelong Words™
girl, boy
eastern, northern
right, left
biological, dead
master, slave
stupid, clever
friendship, rivalry
bike, automobile
lunch, supper
amazing, everyday
public, private
situp, pushup
What is the special rule these words conform to?
Hint #1:
Ironically, "John" can also not be evaluated. But he's nonetheless back on the grid.