Matching Pairs Ordinal numbers idiomsOnline version Match each ordinal number idiom to the right definition by Antonia Padilla 1 first come, first served 2 a third wheel 3 second nature 4 at the eleventh hour 5 play second fiddle (to sb/sth) 6 sixth sense 7 for the umpteenth time 8 third degree 9 opportunity knocks but once 10 third time lucky/third time's a charm used to say that two efforts at something have already failed, but perhaps the third will be successful. a special ability to know something without using any of the five senses that include sight, touch, hearing, smell, or taste. asking serious questions and/or giving somebody a rough treatment to get information from them. it happens again after having happened many times before – used when you are annoyed that it has happened so often. being the third person in a group or situation where there are already two people who are romantically involved. people will be dealt with or given sth in the order in which they arrive. having a less important position than somebody/something else. we should take an opportunity (or chance) when it comes. According to this saying, it will not come again. something that becomes automatic or natural due to practice. doing something at the last possible moment.