21-letter words containing h, a, l, o, y, s
- the household cavalry — a group of British soldiers on horseback who have the job of protecting the king or queen and their family
- the royal scots greys — (formerly) a British cavalry regiment, the Second Dragoons
- the women's land army — a unit of women recruited to do agricultural work in the United Kingdom during World War I and World War II
- theoretical physicist — a scientist who studies theoretical physics
- threshold wage policy — a policy whereby wages are increased in accordance with inflation
- to lay something bare — If you lay something bare, you uncover it completely so that it can then be seen.
- to rear its ugly head — If something unpleasant rears its head or rears its ugly head, it becomes visible or noticeable.
- weinberg-salam theory — electroweak theory.
- x-ray crystallography — the determination of the structure of a crystal by the use of x-ray diffraction.