Nay - Thin
éducation
NATHAN! Nathan? NaTHAN. NAthan. etc.
Any time something is of measurable benefit with few or no adverse effects it can be called "useful". Technology has been useful in education for quite a long time now however. So called "super...
The Spanish equivalent is 'Natan' (with an accent over the second 'a'), pronounced 'nah-TAHn'