economy
Economics is a collective term. It is used in the singular.
Here are some examples of nouns that are plural in form but singular in meaning: gallows glasses headquarters news pajamas pants scissors series species billiards athletics physics Philippines measles tweezers dominoes economics civics politics
The singular form of the demonstrative pronoun 'these' is this.
The singular form of "that" is "it."
The singular form is cuff.
it is already in its singular form.
"Stratum" is the singular form of stratum. The plural form is "strata".
The form hypothesis is the singular form. The plural form is hypotheses.
A singular form of dice is a die
The singular form of feet is foot.
The singular form of Oases is, Oasis.
Phenomenon is the singular form of phenomena.