The ş might be confusing to you, but we Turks use ş in a verb to make it what we call işteş (mutual) So for example görmek - to see gör+ş+mek = görüşmek (to see each other, to meet) selamlamak - to salute or to say hi selamla+ş+mak= selamlaşmak (to say each other hi, to salute each other) sevmek = to love sev+ş+mek = sevişmek (to make love - lit. to love each other) öpmek = to kiss öp+ş+mek = öpüşmek (to kiss each other) with the same way, anlamak = to understand anla + ş + mak = to understand each other anlaştık is pass tense of 1.st plural (i.e we) of anlaşmak Anlaştık: We understood each other - We made a deal. Hope it clarifies

''Anlaştık'' means ''we deal'' ''Anlaştık''taki ''ş'' işin karşılıklı yapıldığını gösterir. ''ş'' means two side deal with each other. ''tık'' means ''biz anlaştık''. Tık, fiili biz'e göre çekimleyen ektir. ''AnlaşTIK'' means ''WE deal'' I hope it will help you. Its a little complicate

İt means like "reciprocal shaking hands"