Build up and Pour on

Build up verb - To become greater in extent, volume, amount, or number.

Pour on and build up are semantically related In some cases you can replace term "Pour on" with "Build up", this phrasal verbs are similar.

Build up and pour on are semantically related in encourage topic. Sometimes you can use "Build up" instead a verb "Pour on", if it concerns topics such as adjoin, improve, severe.