English is not my first language, and in my language (Bosnian) we write just as we speak ; so from time to time, I encounter phrases which I know I have heard before, but am not sure if I am writing them correctly.
Do you say sound approach to describe an approach to a problem which is logical, makes sense, and is practical?
The reason I ask is that I could not find it in a reliable online reference, and I have a feeling that I am spelling it wrong.
Used as adjective, sound can per the OED mean:
In full accordance with fact, reason, or good sense; founded on true or well-established grounds; free from error, fallacy, or logical defect; good, strong, valid.
And it is this sense that is operative here. They give four citations that appear especially relevant, albeit not especially recent:
- C. 1440 Capgrave Life St. Kath. ᴠ. 1183 ― Youre counseyll in this is neyther saue ne sounde.
- 1576 Gascoigne Steele Gl. (Arb.) 52 ― And sound advice might ease hir wearie thoughtes.
- 1596 Edw. III, ɪ. i. 101 ― The soundest counsell I can giue his grace, Is to surrender ere he be constraynd.
- 1697 Dryden Æneid xɪɪ. 42 ― Sound Advice, proceeding from a heart Sincerely yours.
In summary, I should say that your approach is therefore sound.