The Japanese adjectival noun '直 (ちょく)' means 'direct' and is often used to describe something that is straightforward, immediate, or without intermediaries. It can be used in various contexts, such as communication, travel, or actions. For example: direct communication「直のコミュニケーション」(ちょくのコミュニケーション). He took a direct flight「彼は直行便に乗った」(かれはちょっこうびんにのった). Note that '直' is often combined with other words to form compound terms, such as '直行 (ちょっこう)' (direct travel) or '直感 (ちょっかん)' (intuition).