常 - usual, ordinary, normal

standing; regular; permanent

regular customer; regular patron; regular visitor; frequenter

emergency exit

custom; common practice; habit

common sense; good sense; common knowledge; general knowledge; common practice; accepted practice; social etiquette

managing director; executive director

usual; ordinary; normal; regular; general; common

very; extremely; exceedingly

part-time work

person with no physical or mental disability; able-bodied person; non-disabled person

always; constantly

permanent stationing; staying permanently