specialty, exclusive, mainly, solely
専 centers on focusing on one thing to the exclusion of others: a specialty, something exclusive, or doing something mainly or solely.
専 is the modern simplified form of 專. The older form combines 叀 (a spindle) with 寸 (hand), suggesting the idea of turning or focusing on a single task, which led to meanings of specialty and exclusivity.
The bottom 寸 looks like a hand, and the top part resembles a focused, single object. Imagine a hand holding a specialized tool, concentrating solely on one task.
For セン, picture a specialist sending a single, exclusive message: send -> セン, and the specialist focuses solely on that task.
speciality; specialty; special subject of study; area of expertise; (one's) field; (one's) major
(one's) exclusive use; private use; personal use
major subject; special study
exclusive; attached to; specialist
absorption; giving undivided attention; devoting oneself (to)
special occupation; principal occupation; specialty; monopoly
special duty; being in sole charge of a duty
wholly; solely; entirely; exclusively; devotedly; fixedly
full-time service
(medical) specialist
monopoly; monopolization; exclusive sales rights
despotism; autocracy
specialization; specialisation
working exclusively for; working full-time (for)
nonaggressive defense (policy) (defence)
arbitrariness; despotism; high-handedness; tyranny
housing-loan corporation
vocational school; technical school
specialist; expert; professional; authority; pundit
specialist shop; shop specializing in a particular type of product
technical; specialist; professional; exclusive