The most selfish 1 letter
“I“
Avoid It.

Most Satisfactory 2 letters
“WE“
Use It.

Most Poisonous 3 letters
“EGO“
Kill It.

Most used 4 letters
“LOVE“
Value It.

Most Pleasing 5 letters
“SMILE“
Keep It.

Fastest Spreading 6 letters
“RUMOUR“
Ignore It.

Hard Working 7 letters
“SUCCESS“
Achieve It.

Most Enviable 8 letters
“JEALOUSY“
Distance It.

Most Essential 9 letters
“PRINCIPLE“
Have It.

Most Divine 10 Letters
“FRIENDSHIP“