useful
adj 1: being of use or service; "the girl felt motherly and
useful"; "a useful job"; "a useful member of society"
[syn: {utile}] [ant: {useless}]
2: of great importance or use or service; "useful information";
"valuable advice" [syn: {valuable}, {of value}]
3: capable of being turned to use or account; "useful
applications of calculus"
4: having a useful function; "utilitarian steel tables" [syn: {utilitarian}]