Resh

Resh (ray-sh) is the 20th letter of the alephbet, one that is usually pronounced as an 'r' by non-native speakers:

When speaking Hebrew, it is usually recommended that Resh comes from the back of the tongue with a rolling 'r' sound. Consequently, Resh is another guttural character. Interestingly, in some of the Scriptures, Resh is written with a dagesh which many scholars have posited tells you that there should be a double 'rr' used. For instance, the evidence that Sarah was spelled with a double 'rr' is taken from the inclusion of the dagesh mark.

Introduction to Reading Hebrew
The first basics
The Hebrew AlephBet
The Letters of the AlephBet
Aleph
Bet (Beyt)
Gimmel
Dalet
Hey
Vav
Zayin
Chet
Tet
Yod
Kaf
Lamed
Mem
Nun
Samekh
Ayin
Pey (Fey)
Tsade (Tsadik)
Qof
Resh
Shin
Tav
The Significance of the Alephbet
The Basics of Hebrew Verbs
The Hebrew Verb Subject
The Hebrew Verb Object
Hebrew Verb Tenses
Hebrew Verb Voices and Moods
Hebrew Verb Participles
The Infinite Verb Version
Hebrew Nouns
Hebrew Noun Constructs
Using Prefixes With Nouns
Hebrew Pronouns
Hebrew Plural Nouns
Hebrew Adjectives
Identifying Hebrew Questions
Adverbs, Prepositions and Conjunctions
Hebrew Reading Conclusion