Popular
Popularity
noun, な adjective, の adjective
If a person has a lot of energy then they're very charismatic and fun! What's another feature of charismatic / fun people? They are most likely popular as well.
にんき
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
このビールはとても人気があります。
This beer is very popular.
あのどう人しの人気のひみつをさぐっている。
I am probing into why that doujinshi is so popular.
私がこの辺りで一番人気の高いベリー採集者であります。」と熊が言った。
"I am the most popular berry collector around here," said the bear.