furthermore; in addition; also
Used to add another item or point, often in a list or when providing extra information. Similar to さらに but slightly more conversational.
He can speak English. Furthermore, he can also speak French.
この店では野菜を売っている。ほかにも、果物も置いてある。
This shop sells vegetables. In addition, they also have fruit.
Compound of 他 (ほか, 'other') + に (particle) + も (inclusive particle), literally 'also in other things'.