Invalid and invalid are spelled identically but are pronounced differently and have different meanings, which makes them heteronyms. Heteronyms exist because of our ever-changing English language, and these words with the same spelling and different pronunciation and meaning are a challenge for those who wish to learn to speak English. It can be difficult to learn how to spell different words that look the same and how to use them in sentences, because they are easily confused. The way the pronunciations and definitions differ can be confusing even to native English speakers when attempting to learn vocabulary correctly. Phonological spelling and spelling rules do not always work, and most people avoid misspelling and misuse by studying vocabulary words from spelling lists, enhancing their literacy skills through spelling practice, and learning words in English by studying a dictionary of the English language. English words are also spelled according to their etymologies rather than their sound. For instance, the word tear meaning a liquid drop that falls from an eye is derived from the Old English word tear, meaning a drop or nectar; tear meaning to pull apart comes from the Old English word tearan, which means to lacerate. Heteronyms are confusing words and are commonly misspelled words because of the confusion that arises from words that are pronounced differently but are spelled the same and come from a different etymology. They are often used in puns and riddles. When reading, it is sometimes difficult to know which word is being used in a sentence and how to pronounce the word phonetically. A spell checker will rarely find this type of mistake in English vocabulary, so do not rely on spell check for these commonly confused words but instead, learn to spell. Even a participant in a spelling bee like the National Spelling Bee will ask for an example of a heteronym in a sentence, so that she understands which word she is to spell by using context clues. Do not confuse heteronyms with homophones, which are two or more words that are pronounced in the same way but are spelled differently and have different meanings like sow and sew; do not confuse them with homonyms, which are words that have the same spelling and pronunciation but different meanings like spring as in spring forth and spring as in the season of the year. We will examine the definitions of the words invalid and invalid, where these words came from, and some examples of their use in sentences.
An invalid (IN vuhlid) is someone who is ill or weak and can not take care of himself. An invalid may have a chronic disease or condition. Sometimes the word invalid is used for a person who may become well again, but only if the illness or rehabilitation will take a long time. The word invalid is a noun derived from the Latin word invalidus, which means weak.
Invalid (in VALL id) refers to something that is false, unscientific, irrational, unsupportable, null and void. For instance, a coupon that has expired is invalid and cannot be used to discount a product. An argument that is invalid is false or unscientific and relies on faulty logic or outright deceit. The word invalid is an adjective that is also derived from the Latin word invalidus, in the sense of being weak or feeble.
“My child became an invalid because of the doctors”, she told Komsomolskaya Pravda newspaper. (The Daily Star)
How Edward came to be paralysed is unknown, but according to an obituary in the New Ross Standard in 1933, penned by an unnamed colleague at the time of his death, he had been an invalid most of his life. (The Irish News)
However, that is precisely what the Board did when, in 2015, it declared the post-expiration discontinuation of dues checkoff an invalid economic weapon. (The National Law Review)
It states that the annual fall meeting on Nov. 12 and decisions made at it have been declared invalid for failure to comply with the bylaws of the NWT Fishermen’s Federation. (The Northern News Services)