12-Letter Words Containing: P,I,I

• pose a threat to; present a danger to

• put at risk

• share the feelings of; understand the sentiments of

• be understanding of

• to feel or express sympathy or compassion

• reason philosophically

• change from a simple vowel to a diphthong

• a professional boxer

• clarifying by use of examples

• to dry (blood, serum, or tissue) by freezing in a high vacuum