All 4 Uses

interpret
in
The Man Without a Country
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But none of the officers did; and just as the captain was sending forward to ask if any of the people could, Nolan stepped out and said he should be glad to interpret, if the captain wished, as he understood the language.
Chpt Rest *

interpret = translate
Vaughan always said he grew gray himself while Nolan struggled through this interpretation: I, who did not understand anything of the passion involved in it, saw that the very elements were melting with fervent heat, and that something was to pay somewhere.†
Chpt Rest *

interpretation = a particular understanding or explanation
We were all looking over the rail when the message came, and we all wished we could interpret, when the captain asked who spoke Portuguese.†
Chpt Rest
And their interpreters, as we could understand, instantly said, "Ah, non Palmas," and began to propose infinite other expedients in most voluble language.†
Chpt Rest

Definitions:

(1) (interpret as in: interpret Spanish to English)
to translate someone’s words into spoken words of another language while they are speaking
(2) (interpret as in: her interpretation of the data)
to understand or explain something in a particular way -- often the meaning or significance of something
(3) (interpret as in: her musical interpretation)
capture someone else's ideas, or express personal artistic ideas or feelings while performing someone else's work
(4) (meaning too rare to warrant focus)