i know it from experience
1know — know1 [ nou ] (past tense knew [ nu ] ; past participle known [ noun ] ) verb never progressive *** ▸ 1 learn/understand ▸ 2 be familiar with ▸ 3 use particular name for ▸ 4 remember someone for something ▸ 5 experience ▸ 6 have learned something …
2know — I UK [nəʊ] / US [noʊ] verb [never progressive] Word forms know : present tense I/you/we/they know he/she/it knows present participle knowing past tense knew UK [njuː] / US [nu] past participle known UK [nəʊn] / US [noʊn] *** Ways of saying I don… …
3know — [nō] vt. knew, known, knowing [ME knowen < OE cnawan, akin to OHG cnāhan < IE base * ĝen , *ĝnō , to know, apprehend > CAN1, KEN, L gnoscere, to know, Gr gignōskein] 1. to have a clear perception or understanding of; be sure of or well… …
4experience — ex‧pe‧ri‧ence [ɪkˈspɪəriəns ǁ ˈspɪr ] noun [uncountable] 1. knowledge or skill gained from doing a particular job: • He is a high up executive who has years of experience in advising investors • Applicants will normally have at least two years… …
5from bitter experience — phrase if you know something from bitter experience, you know about its unpleasant aspects because you have experienced it before She knew from bitter experience it wasn’t worth complaining. Thesaurus: as a result of something and describing… …
6Know — (n[=o]), v. t. [imp. {Knew} (n[=u]); p. p. {Known} (n[=o]n); p. pr. & vb. n. {Knowing}.] [OE. knowen, knawen, AS. cn[ a]wan; akin to OHG. chn[ a]an (in comp.), Icel. kn[ a] to be able, Russ. znate to know, L. gnoscere, noscere, Gr. gighw skein,… …
7know — know1 W1S1 [nəu US nou] v past tense knew [nju: US nu:] past participle known [nəun US noun] ▬▬▬▬▬▬▬ 1¦(have information)¦ 2¦(be sure)¦ 3¦(be familiar with somebody/something)¦ 4¦(realize)¦ 5¦(skill/experience)¦ 6¦(know somebody s qualities)¦ 7… …
8know — 1 verb past tense knew, past participle known INFORMATION 1 (intransitive, transitive not in progressive) to have information about something: Who knows the answer? | Do you happen to know the time? | When are they arriving? Maybe Mrs. Mott knows …
9know — [c]/noʊ / (say noh) verb (knew, known, knowing) –verb (t) 1. to perceive or understand as fact or truth, or apprehend with clearness and certainty. 2. to have fixed in the mind or memory: to know a poem by heart. 3. to be cognisant or aware of;… …
10experience — ex|pe|ri|ence1 W1S1 [ıkˈspıəriəns US ˈspır ] n ▬▬▬▬▬▬▬ 1¦(knowledge/skill)¦ 2¦(knowledge of life)¦ 3¦(something that happens)¦ 4 the black/female/Russian etc experience 5 work experience ▬▬▬▬▬▬▬ [Date: 1300 1400; : French; Origin: Latin… …