.i>
1.b> (); / / ; to retain independence [control] [] ; despite all her problems, she has managed to retain a sense of humour , i> ; a soil that retains moisture , ; to retain power ; to retain one's sight ; i> ;
2.b> (), ; this vessel won't retain water ; a dyke to retain the waters ;
3.b> (), ; to have an ability to retain facts easily ;
4.b> () .