Cut a tooth
Definition 1 of 1
Pro Tip 1/3Childhood Stage
Used specifically for babies and toddlers going through the natural teething process. 
At six months, babies usually start cutting teeth.
Pro Tip 2/3Milestone Event
Marks an important developmental milestone in a child's growth. 
His first birthday was special; he cut his first tooth, too!
Pro Tip 3/3Discomfort Indicator
Implies the child may experience discomfort or pain and behave differently. 
She's been cranky all day, probably cutting a new tooth.