Are they "interest free" in the Government's use of the phrase, or the real meaning? The UK government calls (or called) them "interest free" because the intere

Are they "interest free" in the Government's use of the phrase, or the real meaning? The UK government calls (or called) them "interest free" because the interest rate is linked to inflation (as long as it's positive!) and of course (/s) your salary always rises with the same measure of inflation, therefore it's "interest free"