Viewing
Watching, Seeing
noun, verbal noun
If you view and look at something, you are viewing that thing, or watching it.
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.
観覧席はもう満席になりました。
The viewing seats are already full.
観覧中は写真撮影が禁止されています。
Photography is prohibited during the viewing.
ちゃんと投げろ！遊び球を投げるところを観覧しに来たんじゃないぞ！
Throw it properly! I didn't come to see you throw a practice ball!
トーフグテレビの撮影現場を観覧しました。
I watched the TofuguTV filming.