Matching Pairs Vocabulary Unit 7 Matching GameOnline version Test your knowledge of Vocabulary Unit 7 concepts with this fun matching pairs game! by Maria Florencia Mena 1 Tried and tested 2 Affordable 3 Behind the times 4 Spare parts 5 Experimental 6 Ahead of its time 7 Innovative 8 Upgrade 9 Compatible Late, old. Something featuring new methods; advanced and original. A duplicate part to replace a lost or damaged part of a machine. To improve the quality or usefulness of something Something considered too advanced or modern to be understood or appreciated during the time Something inexpensive; reasonably priced. Something based on untested ideas or techniques and not yet established or finalized. Something that is able to exist or occur together without problems or conflict. Something that was proven in the past to be effective or reliable