This is the 5298th most frequent Japanese word.
con
The Japanese word "コン" (con) is a transliteration often used as shorthand for "computer," "console," or "content," depending on context.
In this sentence, 'コン' refers to a deceitful trick or scheme intended to deceive someone.
彼は巧妙な詐欺の計画（コン）を説明した。
He explained an elaborate con scheme.
Here, 'コン' is a shortened form referring to a conference or a formal meeting.
彼は会議（コン）の準備を行っている。
He is preparing for a conference.
In this example, 'コン' is part of 'コンビニ', which is shorthand for a convenience store, showing its use in compound words.