Dictionaries

I have looked up the same word in three different dictionaries, the Word was evaluation and these are the results:

Oxford dictionaries:

Evaluation: NOUN

mass noun

The making of a judgement about the amount, number, or value of something; assessment.

‘the evaluation of each method’

count noun ‘an initial evaluation of the programme’

Webster dictionary:

Evaluation: NOUN

eval·u·a·tion   \  i-ˌval-yə-ˈwā-shən ,  -yü-ˈā- \

 the act or result of evaluating 

-a situation that requires careful evaluation

 

determination of the value, nature, character, or quality of something or someone  

-What's your evaluationof her writing ability?

-a patient undergoing psychiatric evaluation

-The CIA described my evaluation of the situation as "sound, perceptive and very much in line with our own."—Robert S. McNamara

-Only 24 states require any kind of testing or evaluation for homeschooled students … —Andrew J. Rotherham

-As part of a standard evaluation, patients are given a series of tests …

 —Jerome Groopman.

Wordreference:

Evaluation: NOUN

e•val•u•a•tion  (i val′yo̅o̅ ā′shən), n. 

1. an act or instance of evaluating or appraising.

2. (esp. in medicine) a diagnosis or diagnostic study of a physical or mental condition.

·           French évaluation. See e-, valuation

·           1745–55

e•val•u•ate /ɪˈvælyuˌeɪt/  v. [~ + object], -at•ed, -at•ing. 

1. to determine the value, quality, or significance of; assess;
   appraise: to evaluate property.

e•val•u•a•tion /ɪˌvælyuˈeɪʃən/  n. [countable;  uncountable]See  -val-.

WordReference Random House Unabridged Dictionary of American English © 2018

e•val•u•ate  (i val′yo̅o̅ āt′), v.t.,  -at•ed, -at•ing. 

1. to determine or set the value or amount of; appraise:to evaluate property.

2. to judge or determine the significance, worth, or quality of;
   assess:to evaluate the results of an experiment.

3. Mathematicsto ascertain the numerical value of (a function, relation, etc.).

e•val•u•a•ble  (i val′yo̅o̅ ə bəl), adj. e•val′u•a′tive, adj. 
e•val′u•a′tor, n. 

After doing the research, I can’t find any significant differences between the three dictionaries, maybe in the Wordreference web, the results are more complete, anad the navigation is easier than in the other ones; then I have looked up in the Learners dictionary too, but again, I haven’t found any important difference, maybe this is because of the Word chosen.

At the Learners dictionary web, there is a Vocabulary quiz, I’ve enjoyed it very much, it’s very challenging, you can test your aptituted, not online in vocabulary but in speedness as well.