hathat /hæt/ ●●● noun [countable] 
1
a piece of clothing that you wear on your head: 
a big straw hat a cowboy hat2keep something under your hat to keep information secret3throw/toss your hat into the ring to officially announce that you will compete or take part in a competition
1 a piece of clothing that you wear on your head: a big straw hat a cowboy hat2keep something under your hat to keep information secret3throw/toss your hat into the ring to officially announce that you will compete or take part in a competition
