is updated weekly is updating is upgrade is upgraded is upgrading is upheld is uphill is upholstered is uplifting is upload is uploaded is uploading is upon him is upon me is upon us is upon you is upper is uppermost is upping is upregulated is upright is upset is upset when is upset with me is upsetting is upside is upside-down is upstairs is upstream is upto is uptown is upward is upwardly is upwards is ur is uranium is uranus is urban is urea is urged is urgent is urgently is urgently needed is urgently required is urging is urinary is urinating is urine is ursula is us is us right is us who is usability is usable is usage is use is used is used a is used a lot is used again is used almost is used almost exclusively is used as is used as a base is used as a basis is used as a catalyst is used as a food is used as a fuel is used as a means is used as a measure is used as a positive is used as a preservative is used as a solvent is used as a source is used as a substitute is used as a symbol is used as a synonym is used as an alternative is used as an example is used as an indicator is used as an ingredient is used as an ornamental is used as control is used as food is used as fuel is used as reference is used as solvent is used as the base is used as the main is used as the solvent is used as well is used commonly is used depends is used directly is used effectively is used either is used even is used everywhere is used exclusively