16-letter words containing a, r, k, i
- walk a tightrope — be in a precarious position
- walking dragline — a very large-capacity dragline mounted on feet or pads instead of tracks
- weak interaction — the interaction between elementary particles and the intermediate vector bosons that carry the weak force from one particle to another.
- wide of the mark — If something such as a claim or estimate is wide of the mark, it is incorrect or inaccurate.