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Office Products > Office Electronics > Electronic Dictionaries, Thesauri & Translators > English Dictionaries > B000056WQQ
  1. Seiko ED5640 American Heritage Dictionary and Roget's New Thesaurus
    Seiko ED5640 American Heritage Dictionary and Roget's New Thesaurus
    Seiko ED5640 American Heritage Dictionary and Roget's New Thesaurus
    Image(s) provided for illustrative purposes and may differ from the actual product
  2. Seiko ED5640 American Heritage Dictionary and Roget's New Thesaurus

    Delivery: 10-20 Working Days
    Customer Ratings (7 reviews)
    Price R3600.00

Product Description

  • Over 220,000 definitions from
  • Over 500,000 synonyms from
  • Definition search and 80,000-word spell checker
  • EZ-Learn teaching system helps build vocabulary skills
  • SAT and TOEFL study lists for test preparation
Additional Information

Make sure you're always using the right word in the right way with this Seiko dictionary, which combines a print dictionary and thesaurus, an advanced spell checker, and Seiko's EZ-Learn teaching system.

Improve your vocabulary with 220,000 definitions from The American Heritage Dictionary and more than 500,000 synonyms from Roget's II: The New Thesaurus. The dictionary also features advanced phonetic spell checking for more than 80,000 words, and the EZ-Learn teaching system helps build vocabulary skills in five ways.

This dictionary finds and displays inflected forms of nouns, adjectives, and verbs. The inflection checker corrects incorrect verb conjugations and inflection errors. This product also contains SAT and TOEFL study lists for test preparation and built-in spelling and synonym-antonym quizzes.

Use the mini-QWERTY keyboard to type in entries. This dictionary weighs only 11 ounces and comes with a protective cover and one-year warranty.


Office Product
Seiko Instruments
Seiko Instruments Austin, Inc.
Seiko Instruments Austin, Inc.
Seiko Instruments Austin, Inc.
Seiko Instruments Austin, Inc.
1 Year & Parts and Labor 1-512-349-6010
Most Helpful Customer Reviews

This Seiko Dictionary and Thesaurus is a great companion. Compared to a traditional dictionary and a thesaurus, it's less expensive, it's easier to carry, and has a better user interface.
I'm skeptical of the claim that it has 220,000 definitions. It is missing some words that are in my 60,000-word dictionary, such as "defenestrate" and "valetudinarian". In some cases, multiple entries refer to the same definition. (If you look up "volatility", you get the definition for "volatile".) Perhaps it has 220,000 _entries_, but not 220,000 definitions?
When I ordered this product from, it arrived with two sets of Spanish instructions and no English instructions. I contacted Seiko customer service about this three months ago and they promised me a set of English instructions. It never arrived, and now Seiko customer service doesn't even answer my e-mails.
Fortunately, the product is easy to figure out without instructions. :-)
In spite of the questionable... Read more
I thought this product was so good I'm buying 2 more for other members of my family. I had tried a comparable Franklin Dictionary and compared to this one it did not hold up. The quizes are better and easier to take and I think it's just an all over superior product.
I received this dictionary as a gift. I am a reader and look up words I don't know. The idea was that I could carry this one around and look up the word at the very time I discovered one I didn't know.
Unfortunately, I believe too much brain space of the dictionary is taken up with games and such...which I don't use. NONE of the words I have looked up since Christmas are included. I have come to believe that if I need to look up the word, it isn't there.
A true disappointment.
Examples: defenstration, quintile, arisaid, circadian, neoprene.
I suggest A READER'S DICTIONARY with all the obscure words and none of the games. After all, a reader's entertainment is READING, not games.
Thank you!
Please Note

The authorised South African distributor of this product is under no obligation to honour the manufacture's guarantees/warranties or to provide after-sales service.

Please note that this item is imported from the USA, and is designed to be used in the USA. In addition, if the unit is powered it will come with a US plug and an adapter/transformer may be required. Please click here for more information on power requirements, or check with us if you are unsure or need any assistance!

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