you spelled it right in the question. it's PERIOD
Period.
Spell means a period of time
The correct spelling is period.
length, time, period, term, stretch, extent, spell, span
You can have a short spell or a long spell. e.g. * My husband had a short spell in Egypt during the war, when he was in the army. * His brother had a long spell in prison for being a conscientious objector. However, a spell is usually a short period of time. e.g. We had a spell of bad weather during our spring break.
period
Period.
you spelled it right in the question. it's PERIOD
Spell means a period of time
The correct spelling is period.
Once you learn how to spell the word Period I will tell you
A period of rain is commonly referred to as a rainy spell or a rainy period.
Usually 'a dry spell' if it occurs in an area where rain is common. If it is prolonged, meaning a long period of time, then it becomes 'a drought'.
The noun 'spell' is an abstract noun as a word for a short, indefinite period of time; a word for a formula or words believed to have magic power; a word for a state or period of enchantment. The abstract noun form of the verb to spell is the gerund, spelling.
length, time, period, term, stretch, extent, spell, span
If it doesn't rain for several days (or even weeks), it's called a dry spell.If it rains for a period of several days, it is a wet spell.A "spell" here is simply an unspecified period of time, not a witch's "spell".
The abbreviation for number is No. (has a period at the end). Numbers plural is Nos. (again a period at the end).