0.00000001 ฿ = 1 Satoshi
0.00000100 ฿ = 1 μBTC (microbitcoin)
0.00100000 ฿ = 1 mBTC (millibitcoin)
0.01000000 ฿ = 1 cBTC (centibitcoin)
1.00000000 ฿ = 1 BTC (bitcoin) 

For  better understanding I will transformate them into known value like dollars.

Let's accept that 1 Bitcoin is equal to $100, so 
1 cBTC = $1
1 mBTC = $0.10
1 μBTC = $0.0001 
1 satoshi = $0.000001