One-Letter Addition - Constrained

Constrained One Letter Addition problems ask you to add exactly one letter to a given word to form a new word that matches a given definition or clue. These problems test vocabulary and word transformation with meaning constraints.

10Worksheets
200+Practice Questions
AdvancedDifficulty
2-3 hoursHours to Master

Introduction to One-Letter Addition - Constrained

Constrained One Letter Addition problems ask you to add exactly one letter to a given word to form a new word that matches a given definition or clue. These problems test vocabulary and word transformation with meaning constraints.

Prerequisites

Vocabulary Word meanings Letter addition skills Definition matching
Why This Matters: Constrained One Letter Addition problems appear in 1-2 questions in advanced exams. They test vocabulary depth and word knowledge.

How to Solve One-Letter Addition - Constrained Problems

1

Step 1: Read the base word and the definition clue

2

Step 2: Consider possible letters to add (at beginning, middle, or end)

3

Step 3: Form candidate words by adding each possible letter

4

Step 4: Check if the candidate matches the definition

5

Step 5: Verify the candidate is a valid English word

6

Step 6: Select the correct candidate

Pro Strategy: Generate possible words by adding common letters (S, E, D, R, T, N, C, P, etc.). Then match the meaning to the definition.

Example Problem

Example: Add one letter to 'PLAN' to get a word meaning 'flat surface for drawing'. Options: PLANE, PLANK, PLANT Solution: Step 1: Base: PLAN, Meaning: flat surface for drawing Step 2: PLANE (add E at end) → means flat surface, aircraft → matches ✓ Step 3: PLANK (add K at end) → means long flat piece of wood → also flat surface Step 4: PLANT (add T at end) → means living organism → not flat surface Step 5: The best match is PLANE (drawing surface) Answer: PLANE

Pro Tips & Tricks

  • Common additions: add E to make noun/verb (PLAN → PLANE)
  • Add S for plural (PLAN → PLANS)
  • Add D for past tense (PLAN → PLAND? Not common, PLANNED needs double N)
  • Add R for agent (PLAN → PLANR? Not common)
  • Add T to make new word (PLAN → PLANT)
  • Add K to make new word (PLAN → PLANK)

Shortcut Methods to Solve Faster

PLAN → PLANE (flat surface for drawing)
STAR → STARE (look fixedly)
EIGHT → EIGHTY (number)
TEACH → TEACHER (instructor)
SEND → SENDS (dispatch)
HARD → HARDER (more difficult) - needs two letters actually

Common Mistakes to Avoid

Adding the wrong letter to match the definition
Creating a word that doesn't match the clue
Adding more than one letter
Not verifying the formed word is valid

Exam Importance

One-Letter Addition - Constrained is an important topic for various competitive exams. Here's how frequently it appears:

SSC CGL
1-2 questions
BANKING PO
1-2 questions
RAILWAYS RRB
1-2 questions
INSURANCE
1-2 questions

Ready to Master One-Letter Addition - Constrained?

Start with Worksheet 1 and work your way up to expert level! Each worksheet includes:

20 practice questions
Detailed solutions
Step-by-step explanations
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