Generally
About, General, Gist
adverb, noun, の adjective
If all you can see is the big body of something, then you'll only get a general idea of what it is. You'll be able to say that it's generally a certain way, but that's about all. You'll get the gist, but no more.
だいたい
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
大体あっています。
That’s about right.
大体同じぐらいのせです。
We are about the same height.
私は大体6時に起きます。
I generally get up at 6 o’clock.