Compare and Contrast Structure Words
Compare and contrast structure words are transition signals which show the similarities or differences. Below are some common examples.
Compare
- Similarly
- Likewise
- also
- both... and...
- not only... but also...
- neither... nor...
- just like (+ noun)
- similar to (+ noun)
- to be similar (to)
- to be the same as
- to be alike
- to compare (to/with)
Examples
- Computers can be used to communicate easily, for example via email. Similarly/Likewise, the mobile phone is a convenient tool for communication.
- Both computers and mobile phones can be used to communicate easily with other people.
- Just like the computer, the mobile phone can be used to communicate easily with other people.
- The computer is similar to the mobile phone in the way it can be used for easy communication.
Contrast
- However
- In contrast
- In comparison
- By comparison
- On the other hand
- while
- whereas
- but
- to differ from
- to be different (from)
- to be dissimilar to
- to be unlike
Examples
- Computers, although increasingly small, are not always easy to carry from one place to another. However, the mobile phone can be carried with ease.
- Computers are generally not very portable, whereas the mobile phone is.
- Computers differ from mobile phones in their lack of portability.
- Computers are unlike mobile phones in their lack of portability.
Criteria for comparison/contrast
When making comparisons or contrasts, it is important to be clear what criteria you are using. Study the following example, which contrasts two people. Here the criteria are unclear.
- Aaron is tall and strong. In contrast, Bruce is handsome and very intelligent.
Although this sentence has a contrast transition, the criteria for contrasting are not the same. The criteria used for Aaron are height (tall) and strength (strong). We would expect similar criteria to be used for Bruce (maybe he is short and weak), but instead we have new criteria, namely appearance (handsome) and intelligence (intelligent). This is a common mistake for students when writing this type of paragraph or essay. Compare the following, which has much clearer criteria (contrast structure words shown in bold).
- Aaron and Bruce differ in four ways. The first difference is height. Aaron is tall, while Bruce is short. A second difference is strength. Aaron is strong. In contrast, Bruce is weak. A third difference is appearance. Aaron, who is average looking, differs from Bruce, who is handsome. The final difference is intelligence. Aaron is of average intelligence. Bruce, on the other hand, is very intelligent.