There are free online dictionary to use, but I don’t think they compare to this brilliant tool. It’s always there on the desktop available to use. It has advanced functions that I have not used yet as I am happy to use its basic function. I have been unable to think of a word that is not included. It is actually an education to randomly scroll through the words learning new amazing word that I’d never heard of before.
Highly recommended.

The Concise Oxford English Dictionary:

Ideal for students and teachers, the 11th edition of the Concise Oxford English Dictionary offers the most authoritative description of the English language, with up-to-date coverage of over 240,000 words, phrases, and meanings, drawn from the largest language research programme in the world.   It also shows pronunciation using the International Phonetic Alphabet and provides digital voice recordings for more than 50,000 popular words.

About Oxford University Press:

Based in Oxford England, Oxford University Press is the world’s largest university press. Publishing more than 4,500 new books a year, with a presence in over fifty countries, it has become familiar to millions through scholarly works in all academic disciplines, school and college textbooks, business books, dictionaries, reference books, and journals.

“I’ve had my Disgo now for about four years, in that time the external shell has completely broken off and exposed the circuitry, not only that, it has been through a machine wash at a 1200 rpm cycle in this condition and it STILL works as well as it did when I first bought it.”STILL works as well as it did when I first bought it”

David Forde