pat noun
ADJ. affectionate, friendly | reassuring
VERB + PAT give sb/sth He gave the dog a pat.
PREP. ~ on He gave her a reassuring pat on the shoulder.
pat verb
ADV. gently, lightly | affectionately
PREP. on He patted her gently on the shoulder.
You can also check other dicts: pat (English, 中文解释 ), wordnet sense, Collins Definition