Which vocab game is better -- knoword or freerice?

Both of these games fun and challenging.

The main difference:

• knoword.com gives you the dictionary definition of a word and the letter it starts with. You type in the word being defined. You try to score more points by guessing correctly and quickly.

• freerice.com gives you just one word and a choice of 4 other words. You click on the one closest in meaning. The more you get correct, the harder they get. You try to reach a higher level.

Try them both and let me know which one you like better and why!