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