This is the 5519th most frequent Japanese word.
お互い
"お互い" means "each other" or "mutual."
In this sentence, 'お互い' is used to express mutual encouragement and effort between two parties.
お互いに頑張りましょう。
Let's both do our best.
Here, 'お互い' is used to convey the mutual respect for thoughts or opinions shared between multiple individuals.
彼らはお互いの考えを尊重しています。
They respect each other's opinions.
'お互い' in this case emphasizes the mutual acceptance of differences among people.