Finding the Incorrectly Spelt Word

The question asks us to identify the word that is spelt incorrectly among the given options. Let's examine each word.

• Tolerance: This refers to the ability or willingness to tolerate something, in particular the existence of opinions or behaviour that one dislikes or disagrees with. This spelling is correct.
• Persistance: Let's hold off on confirming this one and check the others first.
• Insistence: This refers to the fact or state of insisting on something. This spelling is correct.
• Endurance: This refers to the ability to endure an unpleasant or difficult process or situation without giving way. This spelling is correct.

Analyzing the Spelling of Each Option

Let's look closer at the word "Persistance". Many words ending with a sound similar to "-ance" or "-ence" can be tricky. Common correct endings include -ance or -ence.

The word 'Persistance' is related to the verb 'persist'. The correct noun form derived from 'persist' ends in -ence.

The correct spelling is Persistence, not 'Persistance'. It means continuing firmly or obstinately in an opinion or course of action in spite of difficulty or opposition.

Identifying the Misspelt Word

Based on our analysis:

• Tolerance - Correctly spelt.
• Persistance - Incorrectly spelt.
• Insistence - Correctly spelt.
• Endurance - Correctly spelt.

Therefore, the incorrectly spelt word is 'Persistance'.

Revision Table: Correcting Misspellings

Additional Information on Common Spelling Errors

Spelling errors are common, especially with words that sound similar or follow different suffix rules. Words ending in suffixes like -ance, -ence, -ant, -ent can be particularly confusing. Often, checking the root word can help determine the correct suffix.

• Words from verbs ending in -ere or -er often take -ence (e.g., adhere > adherence, refer > reference).
• Words from verbs ending in -ist or -it often take -ence (e.g., exist > existence, resist > resistance - note the exception here, though it's less common).
• Words from verbs ending in -y, -ure, -ain often take -ance (e.g., rely > reliance, endure > endurance, maintain > maintainance - note the exception here).
• Sometimes the correct suffix just needs to be learned by memorization or checking a dictionary. Persistence and resistance are common examples where the rule isn't always simple.

Regular practice and referring to a dictionary are the best ways to improve spelling.