European weed naturalized in southwestern United States and Mexico having reddish decumbent stems with small fernlike leaves and small deep reddish-lavender flowers followed by slender fruits that stick straight up; often grown for forage
"The cattle grazed happily on the local pasture where fields of clocks provided abundant forage."
plural of clock
"The clocks in the grand hall all chimed together at noon."
Third-person singular simple present indicative form of clock
"The alarm clocks ring every morning at seven o'clock."
In plain English: To clock something means to notice it quickly, usually by seeing someone do something wrong.
"Please check your watch to see if you have enough time before we clocks out for lunch tomorrow."
plural of Clock
"The clocks on the wall all stopped at midnight during the power outage."