• spolight,
• soplight,
• atoplight,
• ztoplight,
• xtoplight,
• dtoplight,
• etoplight,
• wtoplight,
• sroplight,
• sfoplight,
• sgoplight,
• syoplight,
• s6oplight,
• stop-light,
• stoplght,
• stopligh,
• stoplightt,
• dropkight,
• loopligh,
• strombight

• steeple,
• stifling,
• stapel,
• stabling,
• styphelia,
• stipule,
• steeply,
• stopple,
• stipple,
• stipulate.

The adjective form of the word "stoplight" is "stoplight". However, if you are looking for an adjective that describes or modifies a stoplight, you could use "signalized" or "traffic-controlled".

The plural of the "stoplight" can be the "stoplights".

The singular of the "stoplight" can be the "stoplight".