4. (v.t.)speculate to consider or think curiously about; suppose, propose, or wonder: to speculate that an agreement will be reached; to speculate whether a quarrel was serious.
Etymology: (1590–1600; < L speculātus, ptp. of speculārī to watch over, explore, der. of specula watch tower, n. der. of specere to look, regard; see -ate1)
Definition of 'speculate'
Princeton's WordNet
1. (verb)speculate, theorize, theorise, conjecture, hypothesize, hypothesise, hypothecate, suppose to believe especially on uncertain or tentative grounds "Scientists supposed that large dinosaurs lived in swamps"
2. (verb)speculate talkover conjecturally, or review in an idle or casual way and with an element of doubt or without sufficient reason to reach a conclusion "We were speculating whether the President had to resign after the scandal"
3. (verb)chew over, think over, meditate, ponder, excogitate, contemplate, muse, reflect, mull, mull over, ruminate, speculate reflect deeply on a subject "I mulled over the events of the afternoon"; "philosophers have speculated on the question of God for thousands of years"; "The scientist must stop to observe and start to excogitate"
4. (verb)speculate, job invest at a risk "I bought this house not because I want to live in it but to sell it later at a good price, so I am speculating"
1. (verb)speculate to guess what is true or why sth has happened I'm not going to speculate on who did it.; Experts speculate that global warming will cause increased flooding in the region.
Definition of 'speculate'
Webster Dictionary
1. (verb)speculate to consider by turning a subject in the mind, and viewing it in its different aspects and relations; to meditate; to contemplate; to theorize; as, to speculate on questions in religion; to speculate on political events
2. (verb)speculate to view subjects from certain premisesgiven or assumed, and infer conclusions respecting them a priori
3. (verb)speculate to purchase with the expectation of a contingentadvance in value, and a consequent sale at a profit; -- often, in a somewhat depreciative sense, of unsound or hazardous transactions; as, to speculate in coffee, in sugar, or in bankstock
4. (verb)speculate to consider attentively; as, to speculate the nature of a thing
Definitions of speculate 
Afrikaans: spekuleer
Arabic: يَتَحَزَّر، يَتَكَهَّن، ي
Bulgarian: налучквам
Brazilian: especular
Czech: dohadovat se
German: Vermutungen anstellen
Danish: spekulere
Greek: κάνω υποθέσεις
Spanish: especular
Estonian: arvama, oletama
Farsi: حدس زدن
Finnish: spekuloida
French: spéculer (sur)
Hebrew: לְשַעֵר
Hindi: कयास लगाना, अंदाज लगाना
Croatian: nagađati, umovati
Hungarian: spekulál
Indonesian: menduga-duga
Icelandic: geta sér til um
Italian: speculare
Japanese: 推測する
Korean: 추측하다
Lithuanian: spėlioti
Latvian: izteikt minējumus/pieņēmu
Malay: mengagak; meneka
Dutch: gissen
Norwegian: spekulere
Polish: zgadywać
Persian: حدس زدن
Pashto: حدس وهل
Portuguese: especular
Romanian: a face speculaţii/presupu
Russian: строить предположения
Slovak: uvažovať, premýšľať
Slovenian: razmišljati
Serbian: nagađati
Swedish: spekulera
Thai: พิจารณา
Turkish: tahmin etmek
Taiwanese: 推測
Ukrainian: роздумувати, робити припу
Urdu: قیاس کرنا، خیال آرائی کرن
Vietnamese: đầu cơ
Chinese: 推测
