Two codewords may be generated.

And as St. James goes on to say just a few verses later:

The cache memory is updated with both words of a word pair simultaneously.

Two fingers signals two words, three fingers means tree words etc.

Two fingers means two syllables, three fingers means three syllables, etc.

These are perhaps the two toughest words for many people to say.

How strange that two words, just two words, could do that.

So how could he forget this, only two sentences later?

Arthritis and osteoarthritis: two words, two realities

Searching for two words separated by a space will search for both words.

In a Few Words: Good People and Master's Comments "Also in a Few Words

So why the two different words, especially if they both mean pretty much the same thing?

Someone else, two words that pretty much sum up their relationship.

Well, in a word - very disappointing (ok that was two words).

And I spoke two little, meaningful words, “I do.