If the following words are arranged as per their order in the English dictionary which of the following words will come third in the sequence? 1. Isomer 2. Isoline 3. Isotope 4. Isolate 5. Isologs 6. Isonomy
Isologs
Understanding Alphabetical Order
This question requires us to arrange a list of words in alphabetical order, as they would appear in an English dictionary, and then identify the word that comes third in that sequence.
To arrange words in alphabetical order, we compare them letter by letter from left to right. We start with the first letter. If the first letters are the same, we move to the second letter, and so on, until we find a letter that is different.
Step-by-Step Word Arrangement
Let's look at the given words:
- Isomer
- Isoline
- Isotope
- Isolate
- Isologs
- Isonomy
All the words begin with the prefix "Iso". So, we need to compare the fourth letter of each word.
| Word | First 3 Letters | 4th Letter |
|---|---|---|
| Isomer | Iso | m |
| Isoline | Iso | l |
| Isotope | Iso | t |
| Isolate | Iso | l |
| Isologs | Iso | l |
| Isonomy | Iso | n |
Comparing the fourth letters (l, l, l, m, n, t) alphabetically, 'l' comes first, followed by 'm', then 'n', and finally 't'.
We have three words starting with "Isol": Isoline, Isolate, and Isologs. To determine their order, we compare the fifth letter:
| Word | First 4 Letters | 5th Letter |
|---|---|---|
| Isoline | Isol | i |
| Isolate | Isol | a |
| Isologs | Isol | o |
Comparing the fifth letters (i, a, o) alphabetically, 'a' comes first, followed by 'i', and then 'o'.
Therefore, the order of these three words is:
- Isolate (Iso-l-a...)
- Isoline (Iso-l-i...)
- Isologs (Iso-l-o...)
Now, let's place the other words based on their fourth letter:
The fourth letters in alphabetical order are l, m, n, t. The words corresponding to these are Isolate/Isoline/Isologs, Isomer, Isonomy, Isotope.
Combining the order for the words starting with "Isol", the complete alphabetical sequence is:
- Isolate
- Isoline
- Isologs
- Isomer
- Isonomy
- Isotope
Identifying the Third Word in the Sequence
Based on the alphabetical arrangement above, the third word in the sequence is Isologs.
Revision Table: Key Learnings
| Concept | Description |
|---|---|
| Alphabetical Order | Arranging words based on the sequence of letters in the alphabet. |
| Letter-by-Letter Comparison | Starting from the first letter, compare words until a differing letter determines the order. |
| Handling Same Prefixes | If words share a common prefix, compare the letters immediately following the prefix. |
Additional Information: Dictionary Arrangement
Understanding dictionary order is fundamental for vocabulary building and language skills. When arranging words alphabetically, if one word is a prefix of another (e.g., "cat" and "catalogue"), the shorter word typically comes first unless the dictionary follows specific rules for prefixes/suffixes. In this question, all words are distinct and do not pose this specific challenge, making the standard letter-by-letter comparison the primary method.
Important Questions from Word Formation
In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
Nightwalker
In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
UNIFORMITY
From among the given options, select the word which CANNOT be formed using the letters of the given word.
LAUGHTER
From among the given options, select the word which CANNOT be formed using the letters of the given word.
DAUGHTER
Select the word-pair that best represents a similar relationship to the one expressed in the pair of words given below.
(The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word.)
Larva : Insect
