znalec znamená v angličtina

cognoscente [cognoscenti]▼(someone possessing specialized knowledge in a particular field)
noun
[UK: ˌkɒ.njəʊ.ˈʃen.tɪ] [US: ˌkɑː.njə.ˈʃen.tiː]

connoisseur [connoisseurs]▼(specialist whose opinion is valued)
noun
[UK: ˌkɒ.nə.ˈsɜː(r)] [US: ˌkɑː.nə.ˈsɝː]

expert [experts]▼(person with extensive knowledge or ability)
noun
[UK: ˈek.spɜːt] [US: ˈek.spərt]

judge [judges]▼(someone with valued opinions)
noun
[UK: dʒʌdʒ] [US: ˈdʒədʒ]

pundit [pundits]▼(a self-professed expert)
noun
[UK: ˈpʌn.dɪt] [US: ˈpʌn.dət]