Meaning of call for

(verb) express the need or desire for; "She requested an extra bed in her room"; "She called for room service"; "when you call, always ask for Mary"

require as useful, just, or proper; "It takes nerve to do what she did"; "success usually requires hard work"; "This job asks a lot of patience and skill"; "This position demands a lot of personal sacrifice"; "This dinner calls for a spectacular dessert"; "This intervention does not postulate a patient's consent"

request the participation or presence of; "The organizers invite submissions of papers for the conference"

gather or collect; "You can get the results on Monday"; "She picked up the children at the day care center"; "They pick up our trash twice a week"