怀疑 (pinyin: huái yí, written "huai yi" or "huaiyi") means to doubt (sth); to be skeptical of. Below: its meaning, pronunciation, stroke order, and example sentences, so you can learn how to read, say, and write 怀疑.
Meaning
to doubt (sth); to be skeptical of
to have one's doubts; to harbor suspicions; to suspect that