[1] Monolingual Dictionary: Here a word in a language is interpreted in that language. Such as Telugu to Telugu, English to English. The word Crisis is taken from English to Telugu dictionary.
[2] Bilingual Dictionary: Here words from one language are interpreted in another language. Such as English to Telugu. Our website is a bilingual dictionary. If you are looking for the meaning of the word Crisis now, you will find the meaning of a few thousand words here in addition to the meaning of the word Crisis. Try searching for your desired word.
[3] Historical Dictionary: When a word was first coined, what was its spelling and meaning during the first coinage, when did its spelling, pronunciation and meaning change, and what is the current form and meaning of the word as described in the dictionary, so E. Historical Dictionary. E.g., The Shorter Oxford English Dictionary. The dictionary from which the word Crisis is derived has many meanings in the historical dictionary. But The Shorter Oxford English Dictionary is the best.
[4] Subject Dictionary: In this dictionary, everything related to any subject is arranged and explained according to the dictionary. For example — Dictionary of History, Dictionary of Botany, Dictionary of Economics. In addition to Crisis, many words from the subject dictionary can be found here. There are several dictionaries available on the market.