Select the option that can be used as a one-word substitute for the given group of words. A person who walks in his/her sleep
Somnambulist
Understanding One-Word Substitutes for Sleepwalking
One-word substitution is a common part of English vocabulary that helps to make language concise and effective. It involves using a single word to replace a phrase or a clause while retaining the original meaning. This question asks for a single word that describes a person who walks while they are asleep.
Analysing the Given Phrase: "A person who walks in his/her sleep"
The core meaning here is performing the act of walking while in a state of sleep. This is a specific type of sleep disorder.
Evaluating the Options
Let's examine each provided option to determine which one correctly serves as a one-word substitute for a person who walks in their sleep.
- Somnambulist: This word comes from Latin roots: 'somnus' meaning sleep, and 'ambulare' meaning to walk. Therefore, a somnambulist is literally a person who walks while sleeping. This perfectly matches the description in the question.
- Exorcist: An exorcist is a person who performs the ritual of exorcism, which is intended to drive out evil spirits. This word has no relation to sleep or walking in one's sleep.
- Atheist: An atheist is a person who does not believe in the existence of God or gods. This term is related to religious or philosophical belief and has nothing to do with sleepwalking.
- Ventriloquist: A ventriloquist is an entertainer who can make their voice appear to come from a puppet or dummy by speaking without moving their lips. This skill is unrelated to sleep or walking while asleep.
Identifying the Correct One-Word Substitute
Based on the analysis of each option, the term that precisely describes a person who walks in their sleep is Somnambulist.
Here is a summary:
| Phrase | Meaning | One-Word Substitute |
|---|---|---|
| A person who walks in his/her sleep | Someone who walks while asleep | Somnambulist |
Conclusion on the One-Word Substitute
The word Somnambulist is the accurate one-word substitute for the phrase "A person who walks in his/her sleep".
Revision Table: Vocabulary Terms
| Word | Meaning | Relevance to Sleepwalking |
|---|---|---|
| Somnambulist | A person who walks in their sleep. | Directly relevant |
| Exorcist | A person who performs exorcisms. | Not relevant |
| Atheist | A person who does not believe in God. | Not relevant |
| Ventriloquist | An entertainer who projects their voice. | Not relevant |
Additional Information: Terms Related to Sleep
Besides somnambulism (sleepwalking), there are other interesting terms related to sleep:
- Somniloquy: Talking in one's sleep.
- Insomnia: The inability to sleep.
- Narcolepsy: A chronic sleep disorder characterized by overwhelming daytime drowsiness and sudden attacks of sleep.
- Hypersomnia: Excessive sleepiness.
Understanding these terms helps build a stronger vocabulary related to sleep and sleep disorders.
Important Questions from Miscellaneous
The ration of the number of girls and boys in a school is 8 : 7. If the percentage increase in the number of girls and boys is 10% and 20% respectively, what will be the new ratio?
The cheapest means of transport is:
The property of Catenation is most readily predominant in:
Which newspaper edited by Bal Gangadhar Tilak, was one of the strongest critics of the British rule?
Which of the following is NOT a cause of food and water contamination?
