May Day 
noun
11 May, celebrated in many countries as a traditional springtime festival or as an international day honouring workers.That was the spirit that inspired the establishment of May Day as international workers day....
- On May Day 1917, 70,000 workers marched here in support of the February Revolution in Russia.
- In the painting, Rivera included a scene of a giant May Day demonstration of workers marching with red banners.
1.1(In the UK) a public holiday on the first Monday in May.It's been a Bank Holiday here today - the annual public holiday for May Day....
- Speakers also called on the government to declare May Day a public holiday.
- Better times were back for North Yorkshire's battered tourist industry over the May Day Bank Holiday.
- demyelination
- demy octavo
- demy quarto
- demystification
- demystify
- demythologise
- demythologize
- de Médicis, Marie
- den
- Denali
- denar
- denarius
- denary
- denationalise
- denationalization
- denationalize
- denaturalise
- denaturalization
- denaturalize
- denaturant
- denaturation
- denature
- denazification
- denazify
- Denbighshire