EASY (IER) KANJI - JLPT 3 KYUU
兄 Think of a loud older brother with only a big mouth and 2 legs

1) kei, 2) kyou, 3) ani - older brother
お兄さん o nii san - big brother (honorific - it changes from 'ani' to 'onii'
兄弟 kyou dai - brothers