Although he had explored caves in his teens, he did not consider himself a skilled spelunker.
The game 'Spelunker'.
Spelunker HD happened in 2009.
A spelunker-enthusiast +++ "Caver" - see Discussion note.
Spelunker HD was created on 2009-03-26.
Can you use the word concluding in a sentence? Done.
You can use the word Truss in a sentence like this.
Just use it! Or do you mean, can you use the word beheld in a sentence.
How do you use the word decibel in a sentence?What is decibel used for?
Since that is not a word I would not attempt to use it in a sentence.
You just did use the word colonize in a sentence.
You can use the word Terrorist in a sentence as " Muslims are not terrorist ".
use the word puzzlement in a sentence