Both Uses

articulate
in
Flags of Our Fathers
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He didn't articulate it but you understood that people were important.†
Chpt 14. *
I don't remember him ever articulating why he did not want to speak to the callers.†
Chpt 14.

articulating = clearly expressing with words

Definitions:

(1) (articulate as in: articulate her ideas)
the act of or ability of clearly expressing with words; or to clearly express with words
The exact meaning of articulate depends upon its context. For example:
- "She is articulate and persuasive." -- well-spoken (expresses her ideas clearly)
- "She articulated what everyone was thinking." -- said aloud
- "After the stroke, she had to learn to articulate her consonants." -- speak distinctly (so each word can be understood)
(2) (meaning too rare to warrant focus)
Less commonly, articulate can reference jointed segments (including bones). For example:
- "Can she fully articulate the joint?" -- move at a joint
- "The articulated bus can be longer without requiring a wider turning radius." -- formed with joints to allow movement