diff --git a/content/glossary.md b/content/glossary.md
index ff0b034..8c5cc45 100644
--- a/content/glossary.md
+++ b/content/glossary.md
@@ -86,6 +86,10 @@ A transaction output that is smaller than a typically fee required to spend it.
 
 Stands for *Elliptic Curve Digital Signature Algorithm*. Used to verify transaction ownership when making a transfer of bitcoins. See *Signature*.
 
+### Effective Amount
+
+The total amount assigned to the claim, including supports.
+
 ### Elliptic Curve Arithmetic
 
 A set of mathematical operations defined on a group of points on a 2D elliptic curve. LBRY, similar to the Bitcoin protocol, uses predefined curve [secp256k1](https://en.bitcoin.it/wiki/Secp256k1). Here's the simplest possible explanation of the operations: you can add and subtract points and multiply them by an integer. Dividing by an integer is computationally infeasible (otherwise cryptographic signatures won't work). The private key is a 256-bit integer and the public key is a product of a predefined point G ("generator") by that integer: A = G * a. Associativity law allows implementing interesting cryptographic schemes like Diffie-Hellman key exchange (ECDH): two parties with private keys *a* and *b* may exchange their public keys *A* and *B* to compute a shared secret point C: C = A * b = B * a because (G * a) * b == (G * b) * a. Then this point C can be used as an AES encryption key to protect their communication channel.