This lesson covers common vocabulary used for notices and warnings in workplaces, public spaces, and official communications. These items inform people, give instructions, or alert them to hazards. Knowing the correct word and tone helps you communicate clearly and safely.
Notices: Informational messages (schedules, changes, announcements).
Warnings/Cautions: Messages that alert people to potential danger or safety procedures.
Signs and directives: Short, direct phrases (e.g., 'Do not enter', 'Authorized personnel only').
Table
Common Notices & Warnings
Term
Type
Example
Warning
Hazard alert
Warning: High voltage. Keep out.
Caution
Milder hazard / risk
Caution: Wet floor. Walk carefully.
Notice
Informational announcement
Notice: The office will be closed on Friday.
Advisory
Recommendation or guidance
Advisory: Expect travel delays due to weather.
Alert
Immediate attention required
Alert: System outage affecting all users.
Prohibited / Do not
Restriction
Prohibited: Smoking in this area.
Authorized personnel only
Access restriction
Authorized personnel only beyond this point.
Slippery when wet
Specific hazard sign
Slippery when wet — please use handrail.
Tip
Key rule: Tone and verb choice
Choose the correct tone and verb for the situation. Notices are informational, warnings are for safety. Use short, direct language on signs.
Use imperative verbs for direct instructions: 'Do not enter', 'Keep clear'.
Use 'Warning' or 'Danger' for immediate hazards; use 'Caution' for lower-risk situations.
Use 'Notice' for informational messages that do not imply immediate risk.
Always prioritize clarity and the safety of the reader.
Example
Examples in context
Please be advised that the office will be closed on Friday.
Warning: High voltage. Authorized personnel only.
Caution: Wet floor. Cleaning in progress.
Notice: Payroll changes will take effect next month.
Tip
Common mistakes to avoid
Learners often make small errors that reduce clarity or undermine safety. Watch for these universal issues.
Using the wrong label: confusing 'notice' (informational) with 'warning' (safety hazard).
Being overly polite or indirect in safety signs (e.g., 'You might want to avoid') instead of direct imperatives.
Vague instructions: missing who must act or what action to take.
Inconsistent punctuation and capitalization on signs, which can reduce readability.
Aim for clear, direct wording and consistent formatting.
Which sign is most appropriate for a slippery floor where people could fall?
Hint: Think about a short sign that warns about a physical slipping hazard.
Warning: High voltage
Caution: Wet floor
Notice: Office closed
Advisory: Schedule change
Correct!
Use 'Caution' for physical hazards that present a risk of slipping; the phrase 'Wet floor' describes the specific danger.
Incorrect
The correct answer was: Caution: Wet floor
Use 'Caution' for physical hazards that present a risk of slipping; the phrase 'Wet floor' describes the specific danger.
Complete: _____ this area without a badge.
Hint: Think of a short imperative phrase that forbids entry.
Check
Correct!
'Do not enter' is a direct imperative used to forbid access to an area without authorization.
Incorrect
The correct answer was: Do not enter
'Do not enter' is a direct imperative used to forbid access to an area without authorization.
Which sentence is a formal informational notice rather than a safety warning?
Hint: Look for the option that communicates information about schedules rather than danger.
Warning: Flammable materials. Keep away from heat.
Notice: Meeting rescheduled to 3 PM in Conference Room B.
Caution: Do not touch — hot surface.
Danger: Chemical hazard. Wear protective gear.
Correct!
A 'Notice' typically provides information or announcements; the other options warn about hazards.
Incorrect
The correct answer was: Notice: Meeting rescheduled to 3 PM in Conference Room B.
A 'Notice' typically provides information or announcements; the other options warn about hazards.