Question

Vocab based - Plural of crisis

Answer 1

Step 1 — Analyze the word:
The given word is crisis, which is a noun meaning a time of intense difficulty, trouble, or danger.

Step 2 — Rule of plural formation:
Words that end in -is and come from Greek origin usually form their plural by changing -is to -es.
Examples:
- Thesis → Theses
- Analysis → Analyses
- Crisis → Crises

Step 3 — Apply the rule:
Thus, the plural of crisis is crises (pronounced as “cry-seez”).

Step 4 — Example usage:
- The country faced an economic crisis last year.
- Several crises have shaken the global economy in recent decades.

Answer: The correct plural form is Crises.

Answer 2

This can be confirmed by comparing "crisis" against a family of similarly formed Greek-derived nouns rather than only stating the -is to -es rule.

1. Compare with "basis": The plural of "basis" is "bases," changing the ending from "-is" to "-es," following the classical Greek pattern.
2. Compare with "oasis": The plural of "oasis" is "oases," following the exact same change.
3. Compare with "axis": The plural of "axis" is "axes," again following the identical pattern.
4. Apply the same pattern to "crisis": Following the same family pattern, "crisis" becomes "crises," and the anglicized form "crisises" is not used, since Greek-derived nouns of this type keep their classical plural.

Comparing crisis with other nouns in the same Greek-derived family confirms the same ending change applies.

Hence, the correct answer is Crises.