Pip and Pule

Pip verb - To make a short sharp sound like a small bird.

Pule and pip are semantically related. In some cases you can replace term "Pule" with "Pip", this verbs are similar.

Pule verb - To utter feeble plaintive cries.

Pip and pule are semantically related. Sometimes you can use "Pip" instead a verb "Pule".