Time:

* t: Often used as a variable representing time in mathematical and scientific contexts.

* second (s): The standard unit of time in the International System of Units (SI).

* minute (min): 60 seconds.

* hour (h): 60 minutes.

* day (d): 24 hours.

* week (wk): 7 days.

* month (mo): Approximately 30 days.

* year (y): 365 days (or 366 days in a leap year).

* decade (dec): 10 years.

* century (c): 100 years.

* millennium (mil): 1000 years.

Temperature:

* degree Celsius (°C): The standard unit of temperature in the SI.

* degree Fahrenheit (°F): A common temperature scale in the United States.

* degree Kelvin (K): The absolute temperature scale, where zero Kelvin is absolute zero.

Other:

* ton (t): A unit of weight, usually referring to a long ton (2240 pounds) or a short ton (2000 pounds).

* tonne (t): A unit of mass equal to 1000 kilograms.

* tesla (T): The unit of magnetic field strength in the SI.

Please note that some units may have multiple meanings or different variations depending on the context.