In Persian, like Spanish and French, we have different verbs for "to know something" and "to know somebody".

VerbPresent Stem
دانستن
dânestan
to know something
دان
dân
شناختن
shenâkhtan
to know somebody
شناس
shenâs

Examples:

شناختندانستن
سالهاست که همدیگر را می‌شناسیم
Sâlhâ'st ke hamdigar râ mishenâsim
We have known each other for years
می‌دانید ایستگاه کجاست؟
Midânid istgâh kojâ'st?
Do you know where the station is?

Now some words derived from the stems of these verbs:

Derivations of دانستن

دانش
dânesh
science
دانشمند
dâneshmand
scientist
دانش‌آموز
dâneshâmuz
student
(literally: science-learner)
دانش‌جو
dâneshju
university student
(literally: science-seeker)
دانشگاه
dâneshgâh
university
(literally: science-place)
دانشکده
dâneshkade
faculty
(literally: science-home)
دانا
dânâ
wise
دانایی
dânâyi
wisdom
فیزیک‌دان
fizikdân
physicist
(literally: one who knows physics)
ریاضی‌دان
riyâzidân
mathematician
(literally: one who knows mathematics)

Derivations of شناختن

شناخت
shenâkht
cognition, understanding
شناخته
shenâkhte
known
ناشناخته
nâshenâkhte
unknown
شناسایی
shenâsâyi
identification, recognition
آشنا
âshenâ
familiar, acquainted; acquaintance
آشنایی
âshenâyi
familiarity, acquaintance
ناشناس
nâshenâs
unfamiliar; incognito
شناسه
shenâse
identifier
زبان‌شناس
zabânshenâs
linguist
زبان‌شناسی
zabânshenâsi
linguistics
جانورشناس
jânevarshenâs
zoologist