置く (おく) means 'to put' or 'to place.' It's a transitive verb used when you intentionally position an object somewhere. The particle 'に' or 'へ' indicates the location. For example, 'ペンを机に置きます' (Pen o tsukue ni okimasu) means 'I put the pen on the desk.'

置く (おく) は「置く」という意味です。物をどこかに置くときに使います。「ペンを机に置きます」