It is important to note the use of the word 'united'.

I noted his use of her given name, the first time I'd heard him do so, with quiet satisfaction.

Professional historians have noted the educational use of the game.

Note the use of the open A string to facilitate position changes.

First, note the clever use of the word "if" in the second sentence.

Serena thought, noting the easy use of her father's name.

Note the following use of by: Clare's salary has just gone up from £2,000 a month to £2,200.

Note the use of the words risk and unknown.

He also noted the poor use of 3-D and suggested it was added solely in order to charge extra.

Note that Spring's use of the term file system is somewhat confusing.