Ogden's basic English - interesting find. I wonder if the word list for OBE can be used as "most basic words" for practicing other languages? Would such a "unit vector" for basic speech be similar in other languages?
Take the first ten "operations" of the Ogden list: come, get, give, go, keep, let, make, put, seem, take. Every one of these is the kind of word that has multiple non-interchangeable "synonyms" that you could use, depending on context. Expressing the "same" "concept" in another language is kind of like being forced to choose between them, when there's generally no 1:1 mapping.