And  conj. 1 a connecting words, clauses, or sentences, to be taken jointly (you and i). B implying progression (better and better). C implying causation (she hit him and he cried). D implying great duration (cried and cried). E implying a great number (miles and miles). F implying addition (two and two). G implying variety (there are books and books). 2 colloq. To (try and come). 3 in relation to (britain and the ec).  and/or either or both of two stated alternatives. [old english]